8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of

The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 15, 2013

DIGITAL REALTY TRUST, INC.

(Exact name of registrant as specified in its charter)

Maryland	001-32336	26-0081711
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

Four Embarcadero Center, Suite 3200 San Francisco, California	94111
(Address of principal executive offices)	(Zip Code)

(415) 738-6500

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.02 Results of Operations and Financial Condition.

The information in this Item 2.02 of this Current Report on Form 8-K is also being furnished under Item 7.01—“Regulation FD Disclosure” of Form 8-K. Such information, including the exhibits attached hereto, is furnished pursuant to Item 2.02 and shall not be deemed “filed” for any purpose, including for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that Section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Act, or the Exchange Act regardless of any general incorporation language in such filing.

On February 15, 2013, we issued a press release announcing our financial results for the quarter and full year ended December 31, 2012. The text of the press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein.

On February 15, 2013, we posted certain supplemental operating and financial data on our website located at www.digitalrealty.com. That supplemental operating and financial data is attached hereto as Exhibit 99.2 and is incorporated by reference herein.

Item 7.01 Regulation FD Disclosure.

The information in this Item 7.01 of this Current Report on Form 8-K is also being furnished under Item 2.02—“Results of Operations and Financial Condition” of Form 8-K. Such information, including the exhibits attached hereto, is furnished pursuant to Item 7.01 and shall not be deemed “filed” for any purpose, including for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that Section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act or the Exchange Act regardless of any general incorporation language in such filing.

On February 15, 2013, we issued a press release announcing our financial results for the quarter and full year ended December 31, 2012. The text of the press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein.

On February 15, 2013, we posted certain supplemental operating and financial data on our website located at www.digitalrealty.com. That supplemental operating and financial data is attached hereto as Exhibit 99.2 and is incorporated by reference herein.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.	Description
99.1	Press Release dated February 15, 2013.
99.2	Supplemental Operating and Financial Data posted February 15, 2013.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Digital Realty Trust, Inc.
By:	/s/    JOSHUA A. MILLS
	Joshua A. Mills
	Senior Vice President, General Counsel and Assistant Secretary

Date: February 15, 2013

EXHIBIT INDEX

Exhibit No.	Description
99.1	Press Release dated February 15, 2013.
99.2	Supplemental Operating and Financial Data posted February 15, 2013.

EX-99.1

Exhibit 99.1

Four Embarcadero Center, Suite 3200 San Francisco, CA 94111 USA Tel: +1 415 738 6500 Fax: +1 415 738 6501 www.digitalrealty.com

For Additional Information:

A. William Stein	Pamela Matthews Garibaldi
Chief Financial Officer and	Vice President, Investor Relations and
Chief Investment Officer	Corporate Marketing
Digital Realty Trust, Inc.	Digital Realty Trust, Inc.
+1 (415) 738-6500	+1 (415) 738-6500

DIGITAL REALTY TRUST, INC. REPORTS FULL YEAR 2012 FFO OF $4.44 PER SHARE AND CORE FFO OF $4.46 PER SHARE

San Francisco, Calif. (February 15, 2013) – Digital Realty Trust, Inc. (NYSE: DLR), a leading global provider of data center solutions, today announced financial results for its fourth quarter and for the full year ended December 31, 2012. All per share results are on a diluted share and unit basis, except net income per share results are on a diluted share basis.

Highlights:

• Reported FFO of $4.44 per share for the year ended December 31, 2012, up 9.4% from $4.06 per share for the year ended December 31, 2011. Excluding certain items that do not represent ongoing expenses or revenue streams in each full year, 2012 core FFO was $4.46 per share, up 9.0% from 2011 core FFO of $4.09 per share;

• Reported FFO of $1.16 per share for the fourth quarter of 2012, up 13.7% from $1.02 per share for the fourth quarter of 2011. Excluding certain items that do not represent ongoing expenses or revenue streams in each quarter, fourth quarter 2012 core FFO was $1.19 per share, up 15.5% from fourth quarter 2011 core FFO of $1.03 per share;

• Reported net income for the year ended December 31, 2012 of $216.0 million and net income available to common stockholders of $171.7 million, or $1.48 per share, up 12.1% from $1.32 per share for the year ended December 31, 2011;

• Set record for leases commenced during the full year 2012 totaling approximately $134.9 million in annualized GAAP rental revenue;

• Signed leases during 2012 totaling over $105.7 million in annualized GAAP rental revenue;

• To date in 2013, signed leases totaling $31.4 million in annualized GAAP rental revenue;

• Acquired 13 properties totaling approximately 3.3 million square feet for approximately $1.6 billion, and a 164,000 square foot property in Hong Kong acquired through an investment in an unconsolidated joint venture, in 2012;

• Increased 2013 quarterly common stock dividend by 6.8% to $0.78 per share;

Four Embarcadero Center, Suite 3200 San Francisco, CA 94111 USA Tel: +1 415 738 6500 Fax: +1 415 738 6501 www.digitalrealty.com

• In January 2013, closed our inaugural international bond offering with a £400 million 12-year unsecured notes issuance; and

• Confirming 2013 FFO guidance range of $4.65 – $4.80 per share, up 6.4% at the midpoint from 2012 FFO of $4.44 per share and 2013 core FFO guidance range of $4.70 – $4.85 per share, up 7.1% at the midpoint from 2012 core FFO of $4.46 per share.

Funds from operations (“FFO”) on a diluted basis was $159.4 million in the fourth quarter of 2012, or $1.16 per share, up 2.7% from $1.13 per share in the previous quarter, and up 13.7% from $1.02 per share in the fourth quarter of 2011. For the year ended December 31, 2012, FFO on a diluted basis was $583.5 million, or $4.44 per share, up 9.4% from $4.06 per share in 2011.

“Adjusting for items that do not represent ongoing expenses or revenue streams, fourth quarter 2012 core FFO was approximately $4.1 million higher than reported FFO, or $1.19 per share, up 15.5% from fourth quarter 2011 core FFO of $1.03 per share,” said A. William Stein, Chief Financial Officer and Chief Investment Officer of Digital Realty. “Similarly, full year 2012 core FFO was $4.46 per share after adjusting for non-core items. This reflects a 9.0% increase over full year 2011 core FFO of $4.09 per share.”

FFO is a supplemental non-GAAP performance measure used by the real estate industry to measure the operating performance of real estate investment trusts. FFO and core FFO should not be considered as substitutes for net income determined in accordance with U.S. GAAP as measures of financial performance. A reconciliation from U.S. GAAP net income available to common stockholders to FFO and core FFO and definitions of FFO and core FFO are included as an attachment to this press release.

Net income for the fourth quarter of 2012 was $55.9 million, compared to $56.9 million for the third quarter of 2012 and $47.2 million for the fourth quarter of 2011. Net income available to common stockholders in the fourth quarter of 2012 was $44.8 million, or $0.36 per share, compared to $45.6 million, or $0.37 per share, in the third quarter of 2012, and $36.0 million, or $0.34 per share in the fourth quarter of 2011. For the year ended December 31, 2012, net income was $216.0 million, up 33.3% over 2011 net income of $162.1 million. Net income available to common stockholders for the year ended December 31, 2012 was $171.7 million, or $1.48 per share, up 12.1% from $1.32 per share in 2011.

The Company reported total operating revenues of $349.7 million in the fourth quarter of 2012, up 29.2% from $270.6 million in the fourth quarter of 2011, and total operating revenues of $1.3 billion for the year ended December 31, 2012, up 18.2% from $1.1 billion in 2011.

Four Embarcadero Center, Suite 3200 San Francisco, CA 94111 USA Tel: +1 415 738 6500 Fax: +1 415 738 6501 www.digitalrealty.com

“We are very pleased to deliver another solid year of earnings growth for our shareholders in 2012. We continued to expand into key high demand global markets while capturing significant demand for data center space in top markets across North America,” said Michael F. Foust, Chief Executive Officer of Digital Realty. “We are very encouraged by the $31.4 million in annualized GAAP rental revenue that we have signed to date in 2013 which already represents our strongest first quarter for lease signings ever.”

Acquisitions Activity

In November 2012, the Company acquired a 271,000 square foot space held for development located on 34.31 acres of land in Totowa, New Jersey for a purchase price of $16.8 million. The Company plans to develop the existing building to accommodate 15 megawatts of critical IT load and construct a 50 megawatt onsite substation to support the development of additional data center capacity in future phases. In December 2012, the Company completed the acquisitions of a fully leased 52,000 square-foot data center in Sydney, Australia for AU$11.75 million and a three-property data center portfolio in the Paris, France metro area for €60.0 million. Structured as a sale-leaseback transaction, the properties acquired in Paris total approximately 186,000 rentable square feet with nearly five megawatts of IT capacity.

During the full year 2012, the Company acquired 13 properties totaling approximately 3.3 million square feet for approximately $1.6 billion, and a 164,000 square foot property in Hong Kong acquired through an investment in an unconsolidated joint venture.

As of February 15, 2013, the Company’s portfolio comprised 117 properties, excluding three properties held in unconsolidated joint ventures, consisting of 168 buildings totaling approximately 21.9 million net rentable square feet, including 2.4 million square feet of space held for development. The portfolio is strategically located in 32 key technology markets throughout North America, Europe, Asia and Australia.

Balance Sheet Update

Total assets grew to approximately $8.8 billion at December 31, 2012 from $6.1 billion at December 31, 2011. Total debt increased to $4.3 billion at December 31, 2012 from $2.9 billion at December 31, 2011. Stockholders’ equity was approximately $3.5 billion at December 31, 2012, up from over $2.5 billion at December 31, 2011.

In January 2013, the Company closed its inaugural international bond offering with a £400 million 12-year unsecured notes issuance, interest on which is payable semiannually in arrears at a rate of 4.250% per annum.

Four Embarcadero Center, Suite 3200 San Francisco, CA 94111 USA Tel: +1 415 738 6500 Fax: +1 415 738 6501 www.digitalrealty.com

2013 Outlook

FFO per share for the year ending December 31, 2013 is projected to be between $4.65 and $4.80. This guidance represents expected FFO growth of 4.7% to 8.1% over 2012 FFO of $4.44 per share. Core FFO per share for the year ending December 31, 2013, which excludes items that do not represent ongoing expenses or revenue streams, is projected to be between $4.70 and $4.85. This guidance represents projected core FFO growth of 5.4% to 8.7% over 2012 core FFO of $4.46 per share. A reconciliation of the range of 2013 projected net income to projected FFO and core FFO follows:

	Low - High
Net income available to common stockholders per diluted share	$1.37 – 1.52
Add:
Real estate depreciation and amortization	$3.43
Less:
Dilutive impact of convertible stock	$(0.15)
Projected FFO per diluted share	$4.65 – 4.80
Adjustments for items that do not represent core expenses and revenue streams	$0.05
Projected core FFO per diluted share	$4.70 – 4.85

The 2013 guidance provided by Digital Realty in this press release is based on the following assumptions as of February 15, 2013:

• Data center space delivered representing approximately $986 million of investment and generating ROI of 10% – 12%;

• Digital Design Services revenue of $2 – $4 million;

Four Embarcadero Center, Suite 3200 San Francisco, CA 94111 USA Tel: +1 415 738 6500 Fax: +1 415 738 6501 www.digitalrealty.com

• Acquisitions of income producing properties totaling $300 – $400 million at an average cap rate of 7.25% – 7.75%;

• Development and redevelopment capital expenditures of $850 – $950 million;

• Portfolio capital expenditures (recurring and non-recurring) of $60 – $75 million;

• Total G&A expenses of $65 – $68 million;

• Transaction expenses of $6 – $9 million; and

• FX rates (USD per currency): Euro = 1.30; Pound = 1.57; SGD = 0.81; and AUS = 1.03.

Investor Conference Call Details

Digital Realty will host a conference call on Friday, February 15, 2013 at 10:00 am PT / 1:00 pm ET to discuss its fourth quarter and full year 2012 financial results and operating performance. The conference call will feature Chief Executive Officer, Michael F. Foust, and Chief Financial Officer and Chief Investment Officer, A. William Stein. To participate in the live call, investors are invited to dial +1 (888) 701-6680 (domestic callers) or +1 (706) 634-5458 (international callers) and quote the conference ID #88753411 at least five minutes prior to start time. A live webcast of the call will be available via the Investors section of Digital Realty’s website at www.digitalrealty.com. Please go to the website at least 15 minutes early to register and download and install any necessary audio software. If you are unable to listen to the live conference call, a telephone and webcast replay will be available until 11:59 pm ET on Friday, March 1, 2013. The telephone replay can be accessed two hours after the call by dialing +1 (855) 859-2056 (domestic callers) or +1 (404) 537-3406 (for international callers) and using the conference ID #88753411. The webcast replay can be accessed on Digital Realty’s website immediately after the live call has concluded.

About Digital Realty

Digital Realty Trust, Inc. focuses on delivering customer driven data center solutions by providing secure, reliable and cost effective facilities that meet each customer’s unique data center needs. Digital Realty’s customers include domestic and international companies across multiple industry verticals ranging from information technology and Internet enterprises, to manufacturing and financial services. Digital Realty’s 117 properties, excluding three properties held as investments in unconsolidated joint ventures, comprise approximately 21.9 million square feet as of February 15, 2013, including 2.4 million square feet of space held for development. Digital Realty’s portfolio is located in 32 markets throughout Europe, North America, Asia and Australia. Additional information about Digital Realty is included in the Company Overview, which is available on the Investors page of Digital Realty’s website at http://www.digitalrealty.com.

Four Embarcadero Center, Suite 3200 San Francisco, CA 94111 USA Tel: +1 415 738 6500 Fax: +1 415 738 6501 www.digitalrealty.com

Safe Harbor Statement

This press release contains forward-looking statements which are based on current expectations, forecasts and assumptions that involve risks and uncertainties that could cause actual outcomes and results to differ materially, including statements related to the Company’s 2013 guidance and its underlying assumptions, supply and demand for data center space, rent from leases that have been signed but have not yet commenced and other contracted rent to be received in future periods, development and redevelopment plans, and expected timing, size and IT capacity of development and redevelopment projects, and expectations regarding the Company’s future growth and success. These risks and uncertainties include, among others, the following: the impact of the recent deterioration in global economic, credit and market conditions, including the downgrade of the U.S. government’s credit rating; current local economic conditions in our geographic markets; decreases in information technology spending, including as a result of economic slowdowns or recession; adverse economic or real estate developments in our industry or the industry sectors that we sell to (including risks relating to decreasing real estate valuations and impairment charges); our dependence upon significant tenants; bankruptcy or insolvency of a major tenant or a significant number of smaller tenants; defaults on or non-renewal of leases by tenants; our failure to obtain necessary debt and equity financing; increased interest rates and operating costs; risks associated with using debt to fund our business activities, including re-financing and interest rate risks, our failure to repay debt when due, adverse changes in our credit ratings or our breach of covenants or other terms contained in our loan facilities and agreements; financial market fluctuations; changes in foreign currency exchange rates; our inability to manage our growth effectively; difficulty acquiring or operating properties in foreign jurisdictions; our failure to successfully integrate and operate acquired or redeveloped properties or businesses; risks related to joint venture investments, including as a result of our lack of control of such investments; delays or unexpected costs in development or redevelopment of properties; decreased rental rates or increased vacancy rates; increased competition or available supply of data center space; our inability to successfully develop and lease new properties and space held for redevelopment; difficulties in identifying properties to acquire and completing acquisitions; our inability to acquire off-market properties; our inability to comply with the rules and regulations applicable to reporting companies; our failure to maintain our status as a REIT; possible adverse changes to tax laws; restrictions on our ability to engage in certain business activities; environmental uncertainties and risks related to natural disasters; losses in excess of our insurance coverage; changes in foreign laws and regulations, including those related to taxation and real estate ownership and operation; and changes in local, state and federal regulatory requirements, including changes in real estate and zoning laws and increases in real property tax rates. For a further list and description of such risks and uncertainties, see the reports and other filings by the Company with the U.S. Securities and Exchange Commission,

Four Embarcadero Center, Suite 3200 San Francisco, CA 94111 USA Tel: +1 415 738 6500 Fax: +1 415 738 6501 www.digitalrealty.com

including the Company’s Annual Report on Form 10-K for the year ended December 31, 2011 and Quarterly Reports on Form 10-Q for the quarters ended March 31, 2012, June 30, 2012 and September 30, 2012. The Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Four Embarcadero Center, Suite 3200 San Francisco, CA 94111 USA Tel: +1 415 738 6500 Fax: +1 415 738 6501 www.digitalrealty.com

Digital Realty Trust, Inc. and Subsidiaries

Condensed Consolidated Income Statements

(in thousands, except share and per share data)

(unaudited)

	Three Months Ended						Year Ended
	December 31, 2012			December 31, 2011			December 31, 2012			December 31, 2011
Operating Revenues:
Rental	$	272,906		$	214,264		$	990,715		$	820,711
Tenant reimbursements		75,147			52,010			272,309			211,811
Construction management		1,525			4,338			8,428			29,286
Other		158			—			7,615			902
Total operating revenues		349,736			270,612			1,279,067			1,062,710
Operating Expenses:
Rental property operating and maintenance		106,095			81,698			380,176			307,922
Property taxes		19,682			9,458			69,475			49,946
Insurance		2,647			2,014			9,600			8,024
Construction management		184			2,388			1,596			22,715
Depreciation and amortization		107,718			80,612			382,553			310,425
General and administrative		13,441			12,542			57,209			53,624
Transactions		5,331			601			11,120			5,654
Other		—			—			1,260			90
Total operating expenses		255,098			189,313			912,989			758,400
Operating income		94,638			81,299			366,078			304,310
Other Income (Expenses):
Equity in earnings of unconsolidated joint ventures		1,733			1,296			8,135			4,952
Interest and other income		(116	)		398			1,892			3,260
Interest expense		(40,350	)		(36,856	)		(157,108	)		(149,350	)
Tax (expense) benefit		(10	)		1,164			(2,647	)		42
Loss from early extinguishment of debt		—			(104	)		(303	)		(1,088	)
Net Income		55,895			47,197			216,047			162,126
Net income attributable to noncontrolling interests		(1,329	)		(1,481	)		(5,713	)		(5,861	)
Net Income Attributable to Digital Realty Trust, Inc.		54,566			45,716			210,334			156,265
Preferred stock dividends		(9,751	)		(9,726	)		(38,672	)		(25,397	)
Net Income Available to Common Stockholders	$	44,815		$	35,990		$	171,662		$	130,868
Net income per share available to common stockholders:
Basic	$	0.36		$	0.34		$	1.48		$	1.33
Diluted	$	0.36		$	0.34		$	1.48		$	1.32
Weighted average shares outstanding:
Basic		123,824,957			105,134,719			115,717,667			98,405,375
Diluted		124,145,590			105,584,344			116,006,577			99,169,749

Four Embarcadero Center, Suite 3200 San Francisco, CA 94111 USA Tel: +1 415 738 6500 Fax: +1 415 738 6501 www.digitalrealty.com

Digital Realty Trust, Inc. and Subsidiaries

Condensed Consolidated Balance Sheets

(in thousands)

	December 31, 2012			December 31, 2011
	(unaudited)
ASSETS
Investments in real estate
Properties:
Land	$	661,058		$	555,113
Acquired ground leases		13,658			6,214
Buildings and improvements		7,662,973			5,253,754
Tenant improvements		404,830			303,502
Total investments in properties		8,742,519			6,118,583
Accumulated depreciation and amortization		(1,206,017	)		(900,044	)
Net investments in properties		7,536,502			5,218,539
Investment in unconsolidated joint ventures		66,634			23,976
Net investments in real estate		7,603,136			5,242,515
Cash and cash equivalents		56,281			40,631
Accounts and other receivables, net		168,286			90,580
Deferred rent		321,715			246,815
Acquired above market leases, net		65,055			29,701
Acquired in place lease value and deferred leasing costs, net		495,205			335,381
Deferred financing costs, net		30,621			29,849
Restricted cash		44,050			55,165
Other assets		34,865			27,929
Total Assets	$	8,819,214		$	6,098,566
LIABILITIES AND EQUITY
Global revolving credit facility	$	723,729		$	275,106
Unsecured term loan		757,839			—
Unsecured senior notes, net of discount		1,738,221			1,441,072
Exchangeable senior debentures		266,400			266,400
Mortgage loans, net of premiums		792,376			947,132
Other secured loan		—			10,500
Accounts payable and other accrued liabilities		646,427			315,133
Accrued dividends and distributions		93,434			75,455
Acquired below market leases, net		148,233			85,819
Security deposits and prepaid rents		154,171			101,538
Total Liabilities		5,320,830			3,518,155
Equity:
Stockholders’ equity		3,468,305			2,522,917
Noncontrolling interests		30,079			57,494
Total Equity		3,498,384			2,580,411
Total Liabilities and Equity	$	8,819,214		$	6,098,566

Four Embarcadero Center, Suite 3200 San Francisco, CA 94111 USA Tel: +1 415 738 6500 Fax: +1 415 738 6501 www.digitalrealty.com

Digital Realty Trust, Inc. and Subsidiaries

Reconciliation of Net Income Available to Common Stockholders to Funds From Operations (FFO)

(in thousands, except per share and unit data)

(unaudited)

	Three Months Ended									Year Ended
	December 31, 2012			September 30, 2012			December 31, 2011			December 31, 2012			December 31, 2011
Net income available to common stockholders	$	44,815		$	45,615		$	35,990		$	171,662		$	130,868
Adjustments:
Noncontrolling interests in operating partnership		1,336			1,574			1,530			6,157			6,185
Real estate related depreciation and amortization (1)		106,797			100,994			80,086			378,970			308,547
Real estate related depreciation and amortization related to investment in unconsolidated joint ventures		727			710			985			3,208			3,688
Gain on sale of assets held in unconsolidated joint venture		—			—			—			(2,325	)		—
FFO available to common stockholders and unitholders (2)	$	153,675		$	148,893		$	118,591		$	557,672		$	449,288
Basic FFO per share and unit	$	1.21		$	1.18		$	1.08		$	4.65		$	4.36
Diluted FFO per share and unit (2)	$	1.16		$	1.13		$	1.02		$	4.44		$	4.06
Weighted average common stock and units outstanding
Basic		127,515			126,243			109,603			119,861			103,053
Diluted (2)		137,510			137,304			123,875			131,467			119,404
(1)    Real estate related depreciation and amortization was computed as follows:
Depreciation and amortization per income statement		107,718			101,840			80,612			382,553			310,425
Non-real estate depreciation		(921	)		(846	)		(526	)		(3,583	)		(1,878	)
	$	106,797		$	100,994		$	80,086		$	378,970		$	308,547

(2) At December 31, 2012, we had 4,937 series D convertible preferred shares outstanding that were convertible into 3,143 common shares on a weighted average basis for the three months ended December 31, 2012. For the three months ended December 31, 2012, we have excluded the effect of dilutive series E and series F preferred stock, that may be converted upon the occurrence of specified change in control transactions as described in the articles supplementary governing the series E and series F preferred stock, which we consider highly improbable; if included, the dilutive effect for the three months ended December 31, 2012 would be 7,116 shares. In addition, we had a balance of $266,400 of 5.50% exchangeable senior debentures due 2029 that were exchangeable for 6,531 common shares on a weighted average basis for the three months ended December 31, 2012. See below for calculations of diluted FFO available to common stockholders and unitholders and weighted average common stock and units outstanding.

	Three Months Ended						Year Ended
	December 31, 2012		September 30, 2012		December 31, 2011		December 31, 2012		December 31, 2011
FFO available to common stockholders and unitholders	$	153,675	$	148,893	$	118,591	$	557,672	$	449,288
Add: Series C convertible preferred dividends		—		—		1,402		1,402		6,077
Add: Series D convertible preferred dividends		1,697		1,723		2,398		8,212		13,394
Add: 5.50% exchangeable senior debentures interest expense		4,050		4,050		4,050		16,200		16,200
FFO available to common stockholders and unitholders — diluted	$	159,422	$	154,666	$	126,441	$	583,486	$	484,959
Weighted average common stock and units outstanding		127,515		126,243		109,603		119,861		103,053
Add: Effect of dilutive securities (excluding series C and D convertible preferred stock and 5.50% exchangeable senior debentures)		321		327		450		289		764
Add: Effect of dilutive series C convertible preferred stock		—		—		2,778		814		3,017
Add: Effect of dilutive series D convertible preferred stock		3,143		4,219		4,660		4,017		6,242
Add: Effect of dilutive 5.50% exchangeable senior debentures		6,531		6,515		6,384		6,486		6,328
Weighted average common stock and units outstanding — diluted		137,510		137,304		123,875		131,467		119,404

Digital Realty Trust, Inc. and Subsidiaries

Reconciliation of Funds From Operations (FFO) to Core Funds From Operations (CFFO)

(in thousands, except per share and unit data)

(unaudited)

	Three Months Ended									Year Ended
	December 31, 2012			September 30, 2012			December 31, 2011			December 31, 2012			December 31, 2011
FFO available to common stockholders and unitholders — diluted	$	159,422		$	154,666		$	126,441		$	583,486		$	484,959
Termination fees and other non-core revenues (3)		(158	)		(1,052	)		(111	)		(9,034	)		(2,953	)
Significant transaction expenses		5,331			504			601			11,120			5,654
Loss from early extinguishment of debt		—			—			104			303			1,088
Change in fair value of contingent consideration (4)		(1,051	)		—			—			(1,051	)		—
Other non-core expense adjustments (5)		—			923			—			1,260			174
CFFO available to common stockholders and unitholders — diluted	$	163,544		$	155,041		$	127,035		$	586,084		$	488,922
Diluted CFFO per share and unit	$	1.19		$	1.13		$	1.03		$	4.46		$	4.09

(3) Includes one-time fees, proceeds and certain other adjustments that are not core to our business.

(4) Relates to earn-out contingency in connection with Sentrum Portfolio acquisition.

(5) Includes reversal of accruals and certain other adjustments that are not core to our business.

Four Embarcadero Center, Suite 3200 San Francisco, CA 94111 USA Tel: +1 415 738 6500 Fax: +1 415 738 6501 www.digitalrealty.com

Note Regarding Funds From Operations

Digital Realty calculates Funds from Operations, or FFO, in accordance with the standards established by the National Association of Real Estate Investment Trusts, or NAREIT. FFO represents net income (loss) available to common stockholders and unitholders (computed in accordance with U.S. GAAP), excluding gains (or losses) from sales of property, impairment charges, real estate related depreciation and amortization (excluding amortization of deferred financing costs) and after adjustments for unconsolidated partnerships and joint ventures. Management uses FFO as a supplemental performance measure because, in excluding real estate related depreciation and amortization and gains and losses from property dispositions, it provides a performance measure that, when compared year over year, captures trends in occupancy rates, rental rates and operating costs. Digital Realty also believes that, as a widely recognized measure of the performance of REITs, FFO will be used by investors as a basis to compare our operating performance with that of other REITs. However, because FFO excludes depreciation and amortization and captures neither the changes in the value of our properties that result from use or market conditions, nor the level of capital expenditures and leasing commissions necessary to maintain the operating performance of our properties, all of which have real economic effect and could materially impact our financial condition and results from operations, the utility of FFO as a measure of our performance is limited. Other REITs may not calculate FFO in accordance with the NAREIT definition and, accordingly, our FFO may not be comparable to such other REITs’ FFO. Accordingly, FFO should be considered only as a supplement to net income as a measure of our performance.

Core Funds from Operations

We present core funds from operations, or CFFO, as a supplemental operating measure because, in excluding certain items that do not reflect ongoing revenue or expense streams, it provides a performance measure that, when compared year over year, captures trends in our core business operating performance. We calculate CFFO by adding to or subtracting from FFO (i) termination fees and other non-core revenues, (ii) significant transaction expenses, (iii) loss from early extinguishment of debt, (iv) costs on redemption of preferred stock, (v) significant property tax adjustments, net, (vi) change in fair value of contingent consideration and (vii) other non-core expense adjustments. Because certain of these adjustments have a real economic impact on our financial condition and results from operations, the utility of CFFO as a measure of our performance is limited. Other REITs may not calculate CFFO in a consistent manner. Accordingly, our CFFO may not be comparable to other REITs’ CFFO. CFFO should be considered only as a supplement to net income computed in accordance with GAAP as a measure of our performance.

EX-99.2

Exhibit 99.2

Supplemental Operating and Financial Data

FOURTH QUARTER: DECEMBER 31, 2012

This Supplemental Operating and Financial Data package is not an offer to sell or solicitation to buy securities of Digital Realty Trust, Inc.

Any offers to sell or solicitations to buy securities of Digital Realty Trust, Inc. shall be made only by means of a prospectus approved for that purpose.

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

	PAGE
Corporate Data
Corporate Information		4
Ownership Structure		6
Consolidated Financial Information
Key Quarterly Financial Data		7
Consolidated Balance Sheets		8
Consolidated Quarterly Statements of Operations		9
Funds From Operations and Adjusted Funds From Operations		10
Reconciliation of Earnings Before Interest, Taxes, Depreciation and Amortization and Financial Ratios		11
Same Store and New Properties Consolidated Quarterly Statements of Operations		12
Same Store Operating Trend Summary		13
Consolidated Debt Analysis and Global Revolving Credit Facility		14
Debt Maturities		15
Debt Analysis & Covenant Compliance		16
Portfolio Data
Portfolio Summary		17
Properties Acquired		18
Occupancy Analysis		19
Top 20 Tenants by Annualized Rent		23
Lease Expirations and Lease Distribution		24
Lease Expirations - By Product Type		25
Summary of Leasing Activity - Signed		26
Summary of Leasing Activity - Commenced		27
Historical Capital Expenditures		28
Construction Activity Report		29
Construction Projects in Progress and Total Estimated Direct Cost		30
Definitions
Management Statements on Non-GAAP Supplemental Measures		31

Page 2

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Statement Regarding Forward-Looking Statements

This supplemental package contains forward-looking statements within the meaning of the federal securities laws, including information related to trends, leasing expectations, weighted average lease terms, the exercise of lease extensions, lease expirations, debt maturities, annualized rent at expiration of leases, the effect new leases and increases in rental rates will have on our rental revenue, our credit ratings, construction and redevelopment activity, projected construction costs and other forward-looking financial data. Such statements are based on management’s beliefs and assumptions made based on information currently available to management. Such statements are subject to risks, uncertainties and assumptions and are not guarantees of future performance and may be affected by known and unknown risks, trends, uncertainties and factors that are beyond our control. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those anticipated, estimated or projected. Some of the risks and uncertainties that may cause our actual results, performance or achievements to differ materially from those expressed or implied by forward-looking statements include, among others, the following:

• the impact of the recent deterioration in global economic, credit and market conditions, including the downgrade of the U.S. government’s credit rating;

• current local economic conditions in our geographic markets;

• decreases in information technology spending, including as a result of economic slowdowns or recession;

• adverse economic or real estate developments in our industry or the industry sectors that we sell to (including risks relating to decreasing real estate valuations and impairment charges);

• our dependence upon significant tenants;

• bankruptcy or insolvency of a major tenant or a significant number of smaller tenants;

• defaults on or non-renewal of leases by tenants;

• our failure to obtain necessary debt and equity financing;

• increased interest rates and operating costs;

• risks associated with using debt to fund our business activities, including re-financing and interest rate risks, our failure to repay debt when due, adverse changes in our credit ratings or our breach of covenants or other terms contained in our loan facilities and agreements;

• financial market fluctuations;

• changes in foreign currency exchange rates;

• our inability to manage our growth effectively;

• difficulty acquiring or operating properties in foreign jurisdictions;

• our failure to successfully integrate and operate acquired or redeveloped properties or businesses;

• risks related to joint venture investments, including as a result of our lack of control of such investments;

• delays or unexpected costs in development or redevelopment of properties;

• decreased rental rates or increased vacancy rates;

• increased competition or available supply of data center space;

• our inability to successfully develop and lease new properties and space held for redevelopment;

• difficulties in identifying properties to acquire and completing acquisitions;

• our inability to acquire off-market properties;

• our inability to comply with the rules and regulations applicable to reporting companies;

• our failure to maintain our status as a REIT;

• possible adverse changes to tax laws;

• restrictions on our ability to engage in certain business activities;

• environmental uncertainties and risks related to natural disasters;

• losses in excess of our insurance coverage;

• changes in foreign laws and regulations, including those related to taxation and real estate ownership and operation; and

• changes in local, state and federal regulatory requirements, including changes in real estate and zoning laws and increases in real property tax rates.

The risks included here are not exhaustive, and additional factors could adversely affect our business and financial performance. We discussed a number of additional material risks in our annual report on Form 10-K for the year ended December 31, 2011, and other filings with the Securities and Exchange Commission. Those risks continue to be relevant to our performance and financial condition. Moreover, we operate in a very competitive and rapidly changing environment. New risk factors emerge from time to time and it is not possible for management to predict all such risk factors, nor can it assess the impact of all such risk factors on the business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements. We expressly disclaim any responsibility to update forward-looking statements, whether as a result of new information, future events or otherwise.

Page 3

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Corporate Information

Corporate Profile

Digital Realty Trust, Inc. owns, acquires, redevelops, develops and manages technology-related real estate. The Company is focused on providing datacenter solutions for domestic and international tenants across a variety of industry verticals ranging from information technology and Internet enterprises, to manufacturing and financial services. As of December 31, 2012, the Company’s 117 properties, excluding three properties held as investments in unconsolidated joint ventures, contain applications and operations critical to the day-to-day operations of technology industry tenants and corporate enterprise datacenter tenants. Comprising approximately 21.9 million net rentable square feet, including approximately 2.4 million square feet of space held for development, Digital Realty’s portfolio is located throughout North America, Europe, Asia and Australia. For additional information, please visit the Company’s website at www.digitalrealty.com.

Corporate Headquarters

Four Embarcadero Center, Suite 3200

San Francisco, California 94111

Telephone: (415) 738-6500

Facsimile: (415) 738-6501

Web site: www.digitalrealty.com

Senior Management

Michael F. Foust: Chief Executive Officer

A. William Stein: Chief Financial Officer and Chief Investment Officer

Scott E. Peterson: Chief Acquisitions Officer

David J. Caron: Senior Vice President, Portfolio Management

Investor Relations

To request an Investor Relations package or be added to our e-mail distribution list, please visit our website:

www.digitalrealty.com            (Proceed to Information Request in the Investor Relations section)

Analyst Coverage

Baird	Bank of America Merrill Lynch	Barclays Capital	Canaccord Genuity	Cantor Fitzgerald	Citigroup	Deutsche Bank
Dave Rodgers	James Feldman	Ross Smotrich	Greg Miller	David Toti	Michael Bilerman	John Perry
(216) 737-7341	(646) 855-5808	(212) 526-2306	(212) 389-8128	(212) 915-1219	(212) 816-1685	(212) 250-4912
	Ji Zhang		Eric Z. Chu	Evan Smith	Emmanuel Korchman	Vincent Chao
	(646) 855-2926		(212) 389-8129	(212) 915-1220	(212) 816-1382	(212) 250-6799
Evercore	Green Street	ISI	Jefferies	JMP Securities	KeyBanc Capital Markets	Macquarie
Johnathan Schildkraut	John Stewart	Steve Sakwa	Omotayo Okusanya	William C. Marks	Jordan Sadler	Rob Stevenson
(212) 497-0864	(949) 640-8780	(212) 446-9462	(212) 336-7076	(415) 835-8944	(917) 368-2280	(212) 231-8068
Robert Gutman		George Auerbach		Mitch Germain	Craig Mailman
(212) 497-0877		(212) 446-9459		(212) 906-3546	(917) 368-2316
MLV & Co.	Morgan Stanley	Raymond James	RBC Capital Markets	Stifel Nicolaus	UBS
Jonathan M. Petersen	Paul Morgan	Paul D. Puryear	Jonathan Atkin	Todd Weller	Ross Nussbaum
(646) 556-9185	(415) 576-2627	(727) 567-2253	(415) 633-8589	(443) 224-1305	(212) 713-2484
	Vince Edelson	William A. Crow
	(212) 761-0078	(727) 567-2594

This Supplemental Operating and Financial Data package supplements the information provided in our quarterly and annual reports filed with the Securities and Exchange Commission. Additional information about us and our properties is also available at our website www.digitalrealty.com.

Page 4

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Corporate Information

Stock Listing Information

The stock of Digital Realty Trust, Inc. is traded primarily on the New York Stock Exchange under the following symbols:

Common Stock:	DLR
Series E Preferred Stock:	DLRPRE
Series F Preferred Stock:	DLRPRF

Note that symbols may vary by stock quote provider.

Credit Ratings

Standard & Poors
Corporate Credit Rating	BBB	(Stable Outlook)
Preferred Stock	BB+
Moody’s
Issuer Rating	Baa2	(Stable Outlook)
Preferred Stock	Baa3
Fitch
Issuer Default Rating	BBB	(Stable Outlook)
Preferred Stock	BB+

These credit ratings may not reflect the potential impact of risks relating to the structure or trading of the Company’s securities and are provided solely for informational purposes. Credit ratings are not recommendations to buy, sell or hold any security, and may be revised or withdrawn at any time by the issuing organization in its sole discretion. The Company does not undertake any obligation to maintain the ratings or to advise of any change in ratings. Each agency’s rating should be evaluated independently of any other agency’s rating. An explanation of the significance of the ratings may be obtained from each of the rating agencies.

Common Stock Price Performance

The following summarizes recent activity of Digital Realty’s common stock (DLR):

	4th Quarter 2012			3rd Quarter 2012			2nd Quarter 2012			1st Quarter 2012			4th Quarter 2011			3rd Quarter 2011			2nd Quarter 2011			1st Quarter 2011
High Price *	$	70.16		$	80.59		$	76.04		$	74.04		$	67.83		$	64.09		$	64.25		$	59.34
Low Price *	$	59.25		$	66.70		$	67.84		$	65.00		$	51.75		$	50.63		$	56.34		$	50.63
Closing Price, end of quarter *	$	67.89		$	69.85		$	75.07		$	73.97		$	66.67		$	55.16		$	61.78		$	58.14
Average daily trading volume *		1,389,261			1,215,760			1,073,521			1,026,947			1,259,124			1,198,958			962,400			1,192,245
Indicated dividend per common share **	$	2.92		$	2.92		$	2.92		$	2.92		$	2.72		$	2.72		$	2.72		$	2.72
Closing annual dividend yield, end of quarter		4.3	%		4.2	%		3.9	%		3.9	%		4.1	%		4.9	%		4.4	%		4.7	%
Closing shares and units outstanding, end of quarter ***		127,992,183			127,887,458			115,050,528			112,215,683			110,975,409			109,127,550			103,789,573			97,555,237
Closing market value of shares and units outstanding (thousands), end of quarter	$	8,689,389		$	8,932,939		$	8,636,843		$	8,300,594		$	7,398,731		$	6,019,476		$	6,412,120		$	5,671,861

* New York Stock Exchange trades only.

** On an annual basis.

*** As of December 31, 2012, the total number of shares and units includes 125,140,783 shares of common stock, 1,515,814 common units held by third parties and 1,335,586 common units, vested and unvested long-term incentive units and vested class C units held by officers and directors, and excludes all unexercised common stock options and all shares potentially issuable upon exchange of our 5.50% exchangeable senior debentures due 2029 or upon conversion of our series D cumulative convertible preferred stock or upon conversion of our series E and series F cumulative redeemable preferred stock upon certain change of control transactions.

This Supplemental Operating and Financial Data package supplements the information provided in our quarterly and annual reports filed with the Securities and Exchange Commission. Additional information about us and our properties is also available at our website www.digitalrealty.com.

Page 5

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Partner	# of Units (2)		% Ownership
Digital Realty Trust, Inc.		125,140,783		97.8	%
Cambay Tele.com, LLC (3)		1,515,814		1.2	%
Directors, Executive Officers and Others		1,335,586		1.0	%
Total		127,992,183		100.0	%

(1) Reflects limited partnership interests held by our officers and directors in the form of common units, vested and unvested long-term incentive units and vested class C units and excludes all unexercised common stock options.

(2) The total number of units includes 125,140,783 common units, 1,515,814 common units held by third parties and 1,335,586 common units, vested and unvested long-term incentive units and vested class C units held by officers and directors, and excludes all unexercised common stock options and all shares potentially issuable upon exchange of our 5.50% exchangeable senior debentures due 2029 or upon conversion of our series D cumulative convertible preferred stock or upon conversion of our series E and series F cumulative redeemable preferred stock upon certain change of control transactions.

(3) This third-party contributor received the common units (along with cash and our operating partnership’s assumption of debt) in exchange for their interests in 200 Paul Avenue 1-4, 1100 Space Park Drive, the eXchange colocation business and other specified assets and liabilities. Includes 409,913 common units held by the members of Cambay Tele.com, LLC.

Page 6

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Key Quarterly Financial Data

(Unaudited and dollars in thousands, except per share data)

	31-Dec-12			30-Sep-12			30-Jun-12			31-Mar-12			31-Dec-11			30-Sep-11			30-Jun-11			31-Mar-11
Shares and Units at End of Quarter
Common shares outstanding		125,140,783			123,261,390			110,268,388			107,342,049			106,039,279			104,102,878			98,754,727			92,078,429
Common units outstanding		2,851,400			4,626,068			4,782,140			4,873,634			4,936,130			5,024,672			5,034,846			5,476,808
Total shares and operating partnership units		127,992,183			127,887,458			115,050,528			112,215,683			110,975,409			109,127,550			103,789,573			97,555,237
Enterprise Value
Market value of common equity (1)	$	8,689,389		$	8,932,939		$	8,636,843		$	8,300,594		$	7,398,731		$	6,019,476		$	6,412,120		$	5,671,861
Liquidation value of preferred equity		593,413			597,447			644,096			590,081			590,085			636,312			369,715			508,619
Total debt at balance sheet carrying value		4,278,565			4,080,073			3,400,212			3,271,848			2,940,210			2,797,040			3,067,577			3,055,429
Total enterprise value	$	13,561,367		$	13,610,459		$	12,681,151		$	12,162,523		$	10,929,026		$	9,452,828		$	9,849,412		$	9,235,909
Total debt/Total enterprise value		31.5	%		30.0	%		26.8	%		26.9	%		26.9	%		29.6	%		31.1	%		33.1	%
Selected Balance Sheet Data
Investments in real estate (before depreciation)	$	8,809,153		$	8,430,710		$	6,828,926		$	6,511,710		$	6,142,559		$	5,839,696		$	5,634,381		$	5,455,314
Total assets		8,819,214			8,512,598			6,717,113			6,418,061			6,098,566			5,826,412			5,658,405			5,537,345
Total liabilities		5,320,830			4,985,042			3,978,929			3,785,077			3,518,155			3,249,532			3,524,591			3,498,272
Selected Operating Data
Total operating revenues	$	349,736		$	342,479		$	303,704		$	283,148		$	270,612		$	273,476		$	267,881		$	250,741
Total operating expenses		255,098			245,404			215,255			197,232			189,313			201,850			191,161			176,076
Interest expense		40,350			41,047			37,681			38,030			36,856			37,078			39,334			36,082
Net income		55,895			56,921			53,968			49,263			47,197			37,689			38,228			39,012
Net income available to common stockholders		44,815			45,615			42,021			39,211			35,990			31,908			31,990			30,980
Financial Ratios
EBITDA (2)	$	192,893		$	189,212		$	170,211		$	161,957		$	152,398		$	148,500		$	148,768		$	142,023
Adjusted EBITDA (3)	$	203,973		$	200,518		$	182,158		$	172,009		$	163,605		$	154,281		$	155,006		$	150,055
Cash interest expense (4)	$	30,311		$	54,517		$	27,447		$	53,876		$	25,239		$	54,107		$	27,349		$	45,208
Fixed charges (5)	$	43,829		$	67,919		$	42,646		$	66,477		$	38,794		$	62,280		$	35,750		$	55,630
Debt service coverage ratio (6)		6.7x			3.7x			6.6x			3.2x			6.5x			2.9x			5.7x			3.3x
Fixed charge coverage ratio (7)		4.7x			3.0x			4.3x			2.6x			4.2x			2.5x			4.3x			2.7x
Profitability Measures
Net income per common share - basic	$	0.36		$	0.37		$	0.38		$	0.37		$	0.34		$	0.32		$	0.33		$	0.34
Net income per common share - diluted	$	0.36		$	0.37		$	0.38		$	0.36		$	0.34		$	0.31		$	0.33		$	0.33
Funds From Operations (FFO) per diluted share and unit (8)	$	1.16		$	1.13		$	1.09		$	1.06		$	1.02		$	1.01		$	1.02		$	1.02
Adjusted Funds From Operations (AFFO) per diluted share and unit (9)	$	0.88		$	0.88		$	0.86		$	0.86		$	0.82		$	0.82		$	0.85		$	0.90
Dividends per share and common unit	$	0.73		$	0.73		$	0.73		$	0.73		$	0.68		$	0.68		$	0.68		$	0.68
Diluted FFO payout ratio (10)		63.0	%		64.8	%		67.1	%		69.1	%		66.6	%		67.4	%		67.0	%		66.9	%
Diluted AFFO payout ratio (9)(11)		82.6	%		82.6	%		85.4	%		84.6	%		83.0	%		82.6	%		80.1	%		76.0	%
Portfolio Statistics
Buildings		168			161			155			148			140			136			134			133
Properties		117			110			105			102			101			98			96			96
Net rentable square feet, excluding development space		19,488,757			18,922,065			17,881,857			16,923,054			15,908,059			15,262,859			14,967,288			14,628,267
Square feet held for development (12)		2,427,257			2,242,204			2,177,144			2,189,203			2,384,955			2,126,131			2,107,693			2,236,745
Occupancy at end of quarter (13)		94.4	%		94.2	%		93.5	%		94.8	%		94.8	%		93.7	%		93.9	%		93.5	%
Weighted average remaining lease term (years) (14)		6.9			7.0			7.0			7.0			7.0			7.0			6.8			6.9
Same store occupancy at end of quarter (13)(15)		93.8	%		93.4	%		92.9	%		94.4	%		94.6	%		93.7	%		93.9	%		93.5	%

(1) The market value of common equity is based on the closing stock price at the end of the quarter and assumes 100% redemption of the limited partnership units in our operating partnership, including common units and vested and unvested long-term incentive units (including vested class C units), for shares of our common stock. Excludes shares issuable with respect to stock options that have been granted but have not yet been exercised, and also excludes all shares potentially issuable upon exchange of our 5.50% exchangeable senior debentures due 2029 or upon conversion of our series D cumulative convertible preferred stock or upon conversion of our series E and series F cumulative redeemable preferred stock upon certain change of control transactions.

(2) EBITDA is calculated as earnings before interest, taxes, depreciation and amortization. For a discussion of EBITDA, see page 31. For a reconciliation of net income available to common stockholders to EBITDA, see page 11.

(3) Adjusted EBITDA is EBITDA adjusted for preferred dividends and non-controlling interests. For a discussion of Adjusted EBITDA, see page 31. For a reconciliation of net income available to common stockholders to Adjusted EBITDA, see page 11.

(4) Cash interest expense is interest expense per our statement of operations less amortization of debt discount and deferred financing fees and includes interest that we capitalized. For a reconciliation of GAAP interest expense to cash interest expense, see page 11.

(5) Fixed charges consist of cash interest expense, scheduled debt principal payments and preferred dividends.

(6) Debt service coverage ratio is Adjusted EBITDA divided by cash interest expense.

(7) Fixed charge coverage ratio is Adjusted EBITDA divided by fixed charges.

(8) For a definition and discussion of FFO, see page 31. For a reconciliation of net income available to common stockholders to FFO, see page 10.

(9) All periods presented include internal leasing commissions, the amounts of which have historically been included in capitalized leasing commissions and were previously excluded from recurring capital expenditures. For a definition and discussion of AFFO, see page 31. For a reconciliation of FFO to AFFO, see page 10.

(10) Diluted FFO payout ratio is dividends declared per common share and unit divided by diluted FFO per share and unit.

(11) Diluted AFFO payout ratio is dividends declared per common share and unit divided by diluted AFFO per share and unit.

(12) Development space requires significant capital investment in order to develop data center facilities that are ready for use. Most often this is shell space. However, in certain circumstances this may include partially built datacenter space that was not completed by previous ownership and requires a large capital investment in order to build out the space.

(13) Occupancy and same store occupancy exclude space held for development. For some of our properties, we calculate occupancy based on factors in addition to contractually leased square feet, including available power, required support space and common area.

(14) Weighted average remaining lease term excludes renewal options and is weighted by net rentable square feet.

(15) Same store properties were acquired before December 31, 2010.

Page 7

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Consolidated Balance Sheets

(Dollars in thousands, except per share data)

	December 31, 2012			December 31, 2011
	(unaudited)
ASSETS
Investments in real estate
Land	$	661,058		$	555,113
Acquired ground leases		13,658			6,214
Buildings and improvements		7,662,973			5,253,754
Tenant improvements		404,830			303,502
Investments in real estate		8,742,519			6,118,583
Accumulated depreciation and amortization		(1,206,017	)		(900,044	)
Net investments in properties		7,536,502			5,218,539
Investment in unconsolidated joint ventures		66,634			23,976
Net investments in real estate		7,603,136			5,242,515
Cash and cash equivalents		56,281			40,631
Accounts and other receivables, net of allowance for doubtful accounts of $3,609 and $2,436 as of December 31, 2012 and December 31, 2011, respectively		168,286			90,580
Deferred rent		321,715			246,815
Acquired above market leases, net		65,055			29,701
Acquired in place lease value and deferred leasing costs, net		495,205			335,381
Deferred financing costs, net		30,621			29,849
Restricted cash		44,050			55,165
Other assets		34,865			27,929
Total Assets	$	8,819,214		$	6,098,566
LIABILITIES AND EQUITY
Global revolving credit facility	$	723,729		$	275,106
Unsecured term loan		757,839			—
Unsecured senior notes, net of discount		1,738,221			1,441,072
Exchangeable senior debentures		266,400			266,400
Mortgage loans, net of premiums		792,376			947,132
Other secured loans		—			10,500
Accounts payable and other accrued liabilities		646,427			315,133
Accrued dividends and distributions		93,434			75,455
Acquired below market leases, net		148,233			85,819
Security deposits and prepaid rents		154,171			101,538
Total Liabilities		5,320,830			3,518,155
Commitments and contingencies		—			—
EQUITY:
Stockholders’ equity:
Preferred Stock: $0.01 par value per share, 30,000,000 shares authorized:
Series C Cumulative Convertible Preferred Stock, 4.375%, $0 and $128,159 liquidation preference, respectively ($25.00 per share), 0 and 5,126,364 shares issued and outstanding as of December 31, 2012 and December 31, 2011, respectively		—			123,820
Series D Cumulative Convertible Preferred Stock, 5.500%, $123,413 and $174,426 liquidation preference, respectively ($25.00 per share), 4,936,505 and 6,977,055 shares issued and outstanding as of December 31, 2012 and December 31, 2011, respectively		119,348			168,669
Series E Cumulative Redeemable Preferred Stock, 7.000%, $287,500 and $287,500 liquidation preference, respectively ($25.00 per share), 11,500,000 and 11,500,000 shares issued and outstanding as of December 31, 2012 and December 31, 2011, respectively		277,172			277,292
Series F Cumulative Redeemable Preferred Stock, 6.625%, $182,500 and $0 liquidation preference, respectively ($25.00 per share), 7,300,000 and 0 shares issued and outstanding as of December 31, 2012 and December 31, 2011, respectively		176,191			—
Common Stock: $0.01 par value per share, 165,000,000 shares authorized, 125,140,783 and 106,039,279 shares issued and outstanding as of December 31, 2012 and December 31, 2011, respectively		1,247			1,057
Additional paid-in capital		3,562,642			2,496,651
Dividends in excess of earnings		(656,104	)		(488,692	)
Accumulated other comprehensive income, net		(12,191	)		(55,880	)
Total stockholders’ equity		3,468,305			2,522,917
Noncontrolling interests:
Noncontrolling interest in operating partnership		24,135			45,057
Noncontrolling interest in consolidated joint ventures		5,944			12,437
Total noncontrolling interests		30,079			57,494
Total Equity		3,498,384			2,580,411
Total Liabilities and Equity	$	8,819,214		$	6,098,566

Page 8

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Consolidated Quarterly Statements of Operations

(unaudited and in thousands, except share and per share data)

	Three Months Ended
	31-Dec-12			30-Sep-12			30-Jun-12			31-Mar-12			31-Dec-11			30-Sep-11			30-Jun-11			31-Mar-11
Rental	$	272,906		$	260,052		$	234,923		$	222,834		$	214,264		$	206,846		$	202,806		$	196,795
Tenant reimbursements		75,147			78,878			60,422			57,862			52,010			56,656			51,311			51,834
Construction management		1,525			2,497			1,954			2,452			4,338			9,372			13,759			1,817
Other		158			1,052			6,405			—			—			602			5			295
Total operating revenues		349,736			342,479			303,704			283,148			270,612			273,476			267,881			250,741
Rental property operating and maintenance		106,095			106,660			87,576			79,845			81,698			82,164			72,337			71,723
Property taxes		19,682			17,982			15,769			16,042			9,458			13,055			13,962			13,471
Insurance		2,647			2,463			2,260			2,230			2,014			1,961			1,998			2,051
Construction management		184			623			596			193			2,388			7,391			11,199			1,737
Depreciation and amortization		107,718			101,840			89,000			83,995			80,612			79,047			76,848			73,918
General and administrative		13,441			14,409			15,109			14,250			12,542			14,600			14,077			12,405
Transactions		5,331			504			4,608			677			601			3,632			740			681
Other		—			923			337			—			—			—			—			90
Total operating expenses		255,098			245,404			215,255			197,232			189,313			201,850			191,161			176,076
Operating income		94,638			97,075			88,449			85,916			81,299			71,626			76,720			74,665
Equity in earnings of unconsolidated joint ventures		1,733			1,520			3,493			1,389			1,296			1,390			1,058			1,208
Interest and other income		(116	)		83			1,216			709			398			2,218			380			264
Interest expense		(40,350	)		(41,047	)		(37,681	)		(38,030	)		(36,856	)		(37,078	)		(39,334	)		(36,082	)
Tax (expense) benefit		(10	)		(710	)		(1,206	)		(721	)		1,164			(461	)		(233	)		(428	)
Loss from early extinguishment of debt		—			—			(303	)		—			(104	)		(6	)		(363	)		(615	)
Net income		55,895			56,921			53,968			49,263			47,197			37,689			38,228			39,012
Net income attributable to noncontrolling interests		(1,329	)		(1,529	)		(1,634	)		(1,221	)		(1,481	)		(1,345	)		(1,525	)		(1,510	)
Net income attributable to Digital Realty Trust, Inc.		54,566			55,392			52,334			48,042			45,716			36,344			36,703			37,502
Preferred stock dividends		(9,751	)		(9,777	)		(10,313	)		(8,831	)		(9,726	)		(4,436	)		(4,713	)		(6,522	)
Net income available to common stockholders	$	44,815		$	45,615		$	42,021		$	39,211		$	35,990		$	31,908		$	31,990		$	30,980
Net income per share available to common stockholders - basic	$	0.36		$	0.37		$	0.38		$	0.37		$	0.34		$	0.32		$	0.33		$	0.34
Net income per share available to common stockholders - diluted	$	0.36		$	0.37		$	0.38		$	0.36		$	0.34		$	0.31		$	0.33		$	0.33
Weighted-average shares outstanding - basic		123,824,957			122,026,421			109,761,017			107,099,856			105,134,719			100,588,235			96,295,585			91,428,355
Weighted-average shares outstanding - diluted		124,145,590			122,353,511			110,166,082			107,584,856			105,584,344			101,912,342			97,511,811			92,600,215
Weighted-average fully diluted shares and units		127,835,847			126,569,841			114,505,563			111,917,822			110,052,443			105,478,907			102,272,613			98,117,454

Page 9

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Funds From Operations (FFO)

(unaudited and in thousands, except per share data)

	Three Months Ended
	31-Dec-12			30-Sep-12			30-Jun-12			31-Mar-12			31-Dec-11			30-Sep-11			30-Jun-11			31-Mar-11
Reconciliation of net income available to common stockholders to FFO (Note):
Net income available to common stockholders	$	44,815		$	45,615		$	42,021		$	39,211		$	35,990		$	31,908		$	31,990		$	30,980
Adjustments:
Noncontrolling interests in operating partnership		1,336			1,574			1,661			1,586			1,530			1,421			1,582			1,652
Real estate related depreciation and amortization (1)		106,797			100,994			88,186			82,993			80,086			78,550			76,405			73,506
Real estate related depreciation and amortization related to investment in unconsolidated joint ventures		727			710			866			905			985			918			893			892
Gain on sale of assets held in unconsolidated joint venture		—			—			(2,325	)		—			—			—			—			—
FFO available to common stockholders and unitholders	$	153,675		$	148,893		$	130,409		$	124,695		$	118,591		$	112,797		$	110,870		$	107,030
FFO per share and unit:
Basic	$	1.21		$	1.18		$	1.14		$	1.12		$	1.08		$	1.07		$	1.10		$	1.11
Diluted (2)	$	1.16		$	1.13		$	1.09		$	1.06		$	1.02		$	1.01		$	1.02		$	1.02
Weighted-average shares and units outstanding - basic		127,515			126,243			114,100			111,433			109,603			105,069			101,056			96,303
Weighted-average shares and units outstanding - diluted (2)		137,510			137,304			125,824			125,482			123,875			120,235			117,845			115,730
(1)    Real estate related depreciation and amortization was computed as follows:
Depreciation and amortization per income statement	$	107,718		$	101,840		$	89,000		$	83,995		$	80,612		$	79,047		$	76,848		$	73,918
Non-real estate depreciation		(921	)		(846	)		(814	)		(1,002	)		(526	)		(497	)		(443	)		(412	)
	$	106,797		$	100,994		$	88,186		$	82,993		$	80,086		$	78,550		$	76,405		$	73,506

(2) At December 31, 2012, we had 4,937 series D convertible preferred shares outstanding that were convertible into 3,143 common shares on a weighted average basis for the three months ended December 31, 2012. For the three months ended December 31, 2012, we have excluded the effect of dilutive series E and series F preferred stock, that may be converted upon the occurrence of specified change in control transactions as described in the articles supplementary governing the series E and series F preferred stock, which we consider highly improbable; if included, the dilutive effect for the three months ended December 31, 2012 would be 7,116 shares. In addition, we had a balance of $266,400 of 5.50% exchangeable senior debentures due 2029 that were exchangeable for 6,531 common shares on a weighted average basis for the three months ended December 31, 2012. See below for calculations of diluted FFO available to common stockholders and unitholders and weighted average common stock and units outstanding.

FFO available to common stockholders and unitholders	$	153,675	$	148,893	$	130,409	$	124,695	$	118,591	$	112,797	$	110,870	$	107,030
Add: Series C convertible preferred dividends		—		—		—		1,402		1,402		1,402		1,441		1,832
Add: Series D convertible preferred dividends		1,697		1,723		2,394		2,398		2,398		3,034		3,272		4,690
Add: 5.50% exchangeable senior debentures interest expense		4,050		4,050		4,050		4,050		4,050		4,050		4,050		4,050
FFO available to common stockholders and unitholders - diluted	$	159,422	$	154,666	$	136,853	$	132,545	$	126,441	$	121,283	$	119,633	$	117,602
Weighted average common stock and units outstanding		127,515		126,243		114,100		111,433		109,603		105,069		101,056		96,303
Add: Effect of dilutive securities (excl. series C & D convert. preferred stock & 5.50% debentures)		321		327		405		485		450		410		1,216		1,172
Add: Effect of dilutive series C convertible preferred stock		—		—		489		2,785		2,778		2,784		2,865		3,652
Add: Effect of dilutive series D convertible preferred stock		3,143		4,219		4,374		4,337		4,660		5,604		6,419		8,333
Add: Effect of dilutive 5.50% exchangeable senior debentures		6,531		6,515		6,456		6,442		6,384		6,368		6,289		6,270
Weighted average common stock and units outstanding - diluted		137,510		137,304		125,824		125,482		123,875		120,235		117,845		115,730

Note: For a definition and discussion of FFO, see page 31.

Adjusted Funds From Operations (AFFO)

(unaudited and in thousands)

	Three Months Ended
	31-Dec-12			30-Sep-12			30-Jun-12			31-Mar-12			31-Dec-11			30-Sep-11			30-Jun-11			31-Mar-11
Reconciliation of FFO to AFFO (Note):
FFO available to common stockholders and unitholders	$	153,675		$	148,893		$	130,409		$	124,695		$	118,591		$	112,797		$	110,870		$	107,030
Adjustments:
Non-real estate depreciation		921			846			814			1,002			526			497			443			412
Amortization of deferred financing costs		2,359			2,328			1,799			2,214			2,209			2,285			2,510			2,451
Amortization of debt discount		340			260			250			247			244			241			749			998
Non-cash compensation		2,709			2,741			3,775			3,407			3,167			3,560			3,739			2,963
Loss from early extinguishment of debt		—			—			303			—			104			6			363			615
Straight line rents		(20,004	)		(20,221	)		(19,649	)		(15,902	)		(15,089	)		(14,166	)		(14,305	)		(12,749	)
Above and below market rent amortization		(2,819	)		(2,333	)		(2,871	)		(2,239	)		(2,274	)		(1,989	)		(1,860	)		(1,814	)
Change in fair value of contingent consideration (3)		(1,051	)		—			—			—			—			—			—			—
Capitalized leasing compensation		(4,008	)		(3,847	)		(3,334	)		(3,913	)		(2,610	)		(2,734	)		(2,721	)		(2,443	)
Recurring capital expenditures and tenant improvements (4)		(6,272	)		(3,562	)		(6,128	)		(5,431	)		(4,870	)		(4,678	)		(2,026	)		(1,395	)
Capitalized leasing commissions (4)		(10,037	)		(9,493	)		(4,201	)		(3,607	)		(6,401	)		(5,350	)		(6,486	)		(3,029	)
AFFO available to common stockholders and unitholders	$	115,813		$	115,612		$	101,167		$	100,473		$	93,597		$	90,469		$	91,276		$	93,039

(3) Relates to earn-out contingency in connection with Sentrum Portfolio acquisition.

(4) All periods presented include internal leasing commissions, the amounts of which have historically been included in capitalized leasing commissions and were previously excluded from recurring capital expenditures.

Note: For a definition and discussion of AFFO, see page 31. For a reconciliation of net income available to common stockholders to FFO, see above table.

Page 10

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Reconciliation of Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA) ⁽¹⁾

(unaudited and in thousands)

	Three Months Ended
	31-Dec-12		30-Sep-12		30-Jun-12		31-Mar-12		31-Dec-11			30-Sep-11		30-Jun-11		31-Mar-11
Net income available to common stockholders	$	44,815	$	45,615	$	42,021	$	39,211	$	35,990		$	31,908	$	31,990	$	30,980
Interest		40,350		41,047		37,681		38,030		36,856			37,078		39,334		36,082
Loss from early extinguishment of debt		—		—		303		—		104			6		363		615
Taxes		10		710		1,206		721		(1,164	)		461		233		428
Depreciation and amortization		107,718		101,840		89,000		83,995		80,612			79,047		76,848		73,918
EBITDA		192,893		189,212		170,211		161,957		152,398			148,500		148,768		142,023
Noncontrolling interests		1,329		1,529		1,634		1,221		1,481			1,345		1,525		1,510
Preferred stock dividends		9,751		9,777		10,313		8,831		9,726			4,436		4,713		6,522
Adjusted EBITDA	$	203,973	$	200,518	$	182,158	$	172,009	$	163,605		$	154,281	$	155,006	$	150,055

(1) For the definition and discussion of EBITDA and Adjusted EBITDA, see page 31. EBITDA and Adjusted EBITDA for the three months ended June 30, 2012 include a gain on sale of 700 / 750 Central Expressway, held through an unconsolidated joint venture, of approximately $2.3 million. Excluding this gain, EBITDA and Adjusted EBITDA would have been $167.9 million and $179.9 million, respectively, for three months ended June 30, 2012.

Financial Ratios

(unaudited and in thousands)

	31-Dec-12			30-Sep-12			30-Jun-12			31-Mar-12			31-Dec-11			30-Sep-11			30-Jun-11			31-Mar-11
Total GAAP interest expense	$	40,350		$	41,047		$	37,681		$	38,030		$	36,856		$	37,078		$	39,334		$	36,082
Capitalized interest		7,833			4,496			4,602			4,526			4,262			4,755			4,222			4,666
Change in accrued interest and other non-cash amounts		(17,872	)		8,974			(14,836	)		11,320			(15,879	)		12,274			(16,207	)		4,460
Cash interest expense (a)		30,311			54,517			27,447			53,876			25,239			54,107			27,349			45,208
Scheduled debt principal payments and preferred dividends		13,518			13,402			15,199			12,601			13,555			8,173			8,401			10,422
Total fixed charges (b)	$	43,829		$	67,919		$	42,646		$	66,477		$	38,794		$	62,280		$	35,750		$	55,630
Debt service coverage ratio based on GAAP interest expense (c)		5.1x			4.9x			4.8x			4.5x			4.4x			4.2x			3.9x			4.2x
Debt service coverage ratio based on cash interest expense (d)		6.7x			3.7x			6.6x			3.2x			6.5x			2.9x			5.7x			3.3x
Fixed charge coverage ratio based on GAAP interest expense (e)		3.8x			3.7x			3.4x			3.4x			3.2x			3.4x			3.2x			3.2x
Fixed charge coverage ratio based on cash interest expense (f)		4.7x			3.0x			4.3x			2.6x			4.2x			2.5x			4.3x			2.7x
Debt to total enterprise value including debt and preferred equity (g)		31.5	%		30.0	%		26.8	%		26.9	%		26.9	%		29.6	%		31.1	%		33.1	%
Debt plus preferred stock to total enterprise value including debt and preferred equity (h)		35.9	%		34.4	%		31.9	%		31.8	%		32.3	%		36.3	%		34.9	%		38.6	%
Pretax income to interest expense (i)		2.4x			2.4x			2.4x			2.3x			2.3x			2.0x			2.0x			2.1x
Net Debt to Adjusted EBITDA (j)		5.2x			5.0x			4.6x			4.7x			4.4x			4.5x			4.9x			5.0x

(a) Cash interest expense is interest expense less amortization of debt discount and deferred financing fees and includes interest that we capitalized. We consider cash interest expense to be a useful measure of interest as it excludes non-cash based interest expense.

(b) Fixed charges consist of cash interest expense, scheduled debt principal payments and preferred dividends.

(c) Adjusted EBITDA divided by GAAP interest expense.

(d) Adjusted EBITDA divided by cash interest expense.

(e) Adjusted EBITDA divided by the sum of GAAP interest expense, scheduled debt principal payments and preferred dividends.

(f) Adjusted EBITDA divided by fixed charges.

(g) Mortgage debt and other loans divided by mortgage debt and other loans plus the liquidation value of preferred stock and the market value of outstanding common stock and operating partnership units, assuming the redemption of operating partnership units for shares of our common stock.

(h) Same as (e), except numerator includes preferred stock.

(i) Calculated as net income, adding back interest expense and divided by GAAP interest expense.

(j) Calculated as total debt at balance sheet carrying value (see page 7) less unrestricted cash and cash equivalents divided by the product of Adjusted EBITDA multiplied by four.

Page 11

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Same Store and New Properties Consolidated Quarterly Statements of Operations

(unaudited and in thousands)

	Three Months Ended
Same store (1)	31-Dec-12			30-Sep-12			30-Jun-12			31-Mar-12			31-Dec-11			30-Sep-11			30-Jun-11			31-Mar-11
Operating Revenues:
Rental	$	230,866		$	227,587		$	224,804		$	216,061		$	213,016		$	206,634		$	202,806		$	196,795
Tenant reimbursements - Utilities		40,603			45,931			39,522			35,980			38,699			36,374			37,578			37,386
Tenant reimbursements - Other		18,640			17,916			17,616			18,994			12,925			20,282			13,733			14,448
Construction management (2)		—			—			—			—			—			—			—			—
Other		158			1,052			6,405			—			—			602			5			295
Total operating revenues		290,267			292,486			288,347			271,035			264,640			263,892			254,122			248,924
Operating Expenses:
Rental property operating and maintenance - Utilities		43,385			48,760			41,266			37,905			38,915			39,714			41,055			38,427
Rental property operating and maintenance - Other		46,987			43,218			42,106			39,211			42,129			42,324			31,785			33,003
Property taxes		16,570			15,988			14,840			15,347			9,333			13,006			13,922			13,471
Insurance		2,190			2,069			2,126			2,101			1,908			1,917			1,933			1,921
Construction management (2)		—			—			—			—			—			—			—			—
Depreciation and amortization		88,942			86,588			84,645			80,736			80,332			79,038			76,848			73,918
General and administrative (3)		13,441			14,409			15,109			14,250			12,542			14,600			14,077			12,405
Transactions (4)		—			—			—			—			—			—			—			—
Other		—			923			337			—			—			—			—			90
Total operating expenses		211,515			211,955			200,429			189,550			185,159			190,599			179,620			173,235
Operating income		78,752			80,531			87,918			81,485			79,481			73,293			74,502			75,689
Other Income (Expenses):
Equity in earnings of unconsolidated joint ventures		1,532			1,533			3,500			1,394			1,295			1,390			1,058			1,208
Interest and other income		(20	)		(62	)		1,267			772			395			2,221			380			264
Interest expense		(33,635	)		(37,299	)		(36,361	)		(36,841	)		(36,594	)		(37,075	)		(39,334	)		(36,082	)
Tax expense		(24	)		(586	)		(1,083	)		(596	)		1,288			(378	)		(233	)		(428	)
Loss from early extinguishment of debt		—			—			(303	)		—			(104	)		(6	)		(363	)		(615	)
Net income	$	46,605		$	44,117		$	54,938		$	46,214		$	45,761		$	39,445		$	36,010		$	40,036
New properties (1)
Operating Revenues:
Rental	$	42,040		$	32,465		$	10,119		$	6,773		$	1,248		$	212		$	—		$	—
Tenant reimbursements - Utilities		9,482			10,195			2,408			1,398			—			—			—			—
Tenant reimbursements - Other		6,422			4,836			876			1,490			386			—			—			—
Construction management (2)		1,525			2,497			1,954			2,452			4,338			9,372			13,759			1,817
Other		—			—			—			—			—			—			—			—
Total operating revenues		59,469			49,993			15,357			12,113			5,972			9,584			13,759			1,817
Operating Expenses:
Rental property operating and maintenance - Utilities		9,655			10,107			2,355			1,446			—			—			—			—
Rental property operating and maintenance - Other		6,068			4,575			1,849			1,283			654			126			(503	)		293
Property taxes		3,112			1,994			929			695			125			49			40			—
Insurance		457			394			134			129			106			44			65			130
Construction management (2)		184			623			596			193			2,388			7,391			11,199			1,737
Depreciation and amortization		18,776			15,252			4,355			3,259			280			9			—			—
General and administrative (3)		—			—			—			—			—			—			—			—
Transactions (4)		5,331			504			4,608			677			601			3,632			740			681
Other		—			—			—			—			—			—			—			—
Total operating expenses		43,583			33,449			14,826			7,682			4,154			11,251			11,541			2,841
Operating income		15,886			16,544			531			4,431			1,818			(1,667	)		2,218			(1,024	)
Other Income (Expenses):
Equity in earnings of unconsolidated joint ventures		201			(13	)		(7	)		(5	)		1			—			—			—
Interest and other income		(96	)		145			(51	)		(63	)		3			(3	)		—			—
Interest expense		(6,715	)		(3,748	)		(1,320	)		(1,189	)		(262	)		(3	)		—			—
Tax expense		22			(124	)		(123	)		(125	)		(124	)		(83	)		—			—
Loss from early extinguishment of debt		—			—			—			—			—			—			—			—
Net Income	$	9,298		$	12,804		$	(970	)	$	3,049		$	1,436		$	(1,756	)	$	2,218		$	(1,024	)

(1) Same store properties are properties that were acquired on or before December 31, 2010 and new properties are properties acquired after December 31, 2010.

(2) Construction management revenues and expenses are included entirely in new properties as they are not allocable to specific properties.

(3) General and administrative expenses are included entirely in same store properties as they are not allocable to specific properties.

(4) Transaction expenses are included entirely in new properties as they are not allocable to specific properties.

Page 12

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Same Store Operating Trend Summary

(unaudited and in thousands)

	Three Months Ended
Same store (1)	31-Dec-12			30-Sep-12			Percentage Change			31-Dec-11			Percentage Change
Rental (2)	$	230,866		$	227,587			1.4	%	$	213,016			8.4	%
Tenant reimbursements - Utilities		40,603			45,931			(11.6	%)		38,699			4.9	%
Tenant reimbursements - Other		18,640			17,916			4.0	%		12,925			44.2	%
		290,109			291,434			(0.5	%)		264,640			9.6	%
Rental property operating and maintenance - Utilities		43,385			48,760			(11.0	%)		38,915			11.5	%
Rental property operating and maintenance - Other		46,987			43,218			8.7	%		42,129			11.5	%
Property taxes		16,570			15,988			3.6	%		9,333			77.5	%
Insurance		2,190			2,069			5.8	%		1,908			14.8	%
		109,132			110,035			(0.8	%)		92,285			18.3	%
Net Operating Income (3)	$	180,977		$	181,399			(0.2	%)	$	172,355			5.0	%
Same store occupancy at end of quarter (4)		93.8	%		93.4	%		0.4	%		94.6	%		(0.8	%)

(1) Same store properties were acquired on or before December 31, 2010.

(2) For the periods presented, same store straight-line rent was $17,894, $18,085 and $14,240, respectively, and non-cash purchase accounting adjustments were $1,813, $1,580, and $2,259, respectively.

(3) For a definition and discussion of Net Operating Income, see page 31.

(4) Occupancy excludes space held for development. For some of our properties, we calculate occupancy based on factors in addition to contractually leased square feet, including available power, required support space and common area.

Page 13

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Consolidated Debt Analysis

(unaudited, in thousands)

	Maturity Date	Principal Balance as of December 31, 2012			% of Debt			Interest Rate as of December 31, 2012			Interest Rate as of December 31, 2012 including swaps
Revolving Credit Facility
Global revolving credit facility	November 2,  2016 (1)		723,729			16.9	%		2.05	%
		$	723,729			16.9	%
Unsecured term loan:
Unsecured term loan	April 16, 2017		757,839			17.7	%		1.84	%		2.27	%
		$	757,839			17.7	%
Unsecured senior notes:
Prudential Shelf Facility:
Series B	November 5, 2013		33,000			0.8	%		9.32	%
Series C	January 6, 2016		25,000			0.6	%		9.68	%
Series D	January 20, 2015		50,000			1.2	%		4.57	%
Series E	January 20, 2017		50,000			1.2	%		5.73	%
Series F	February 3, 2015		17,000			0.4	%		4.50	%
Total Prudential Shelf Facility		$	175,000			4.2	%
Senior Notes:
4.50% notes due 2015	July 15, 2015		375,000			8.8	%		4.50	%
5.875% notes due 2020	February 1, 2020		500,000			11.7	%		5.88	%
5.25% notes due 2021	March 15, 2021		400,000			9.3	%		5.25	%
3.625% notes due 2022	October 1, 2022		300,000			7.0	%		3.63	%
Unamortized discounts			(11,779	)		–0.3	%
Total senior notes		$	1,563,221			36.5	%
Total unsecured senior notes		$	1,738,221			40.7	%
Exchangeable senior debentures:
5.50% exchangeable senior debentures due 2029	April 15, 2029		266,400			6.2	%		5.50	%
Total exchangeable senior debentures		$	266,400			6.2	%
Mortgage loans:
Paul van Vlissingenstraat 16	July 18, 2013		13,336			0.3	%		1.79	%		5.58	%
Chemin de l’Epinglier 2	July 18, 2013		9,649			0.2	%		1.69	%		5.57	%
1500 Space Park Drive	October 5, 2013		35,682			0.8	%		6.15	%
Gyroscoopweg 2E-2F	October 18, 2013		8,492			0.2	%		1.69	%		5.49	%
360 Spear Street	November 8, 2013		46,613			1.1	%		6.32	%
Mundells Roundabout	November 30, 2013		69,612			1.6	%		1.72	%		4.18	%
Clonshaugh Industrial Estate II	September 4, 2014		39,579			0.9	%		4.69	%		7.20	%
Cressex 1	October 16, 2014		28,560			0.7	%		5.68	%
Manchester Technopark	October 16, 2014		8,688			0.2	%		5.68	%
Secured Term Debt	November 11, 2014		135,991			3.2	%		5.65	%
200 Paul Avenue 1-4	October 8, 2015		72,646			1.7	%		5.74	%
600 West Seventh Street	March 15, 2016		51,174			1.2	%		5.80	%
34551 Ardenwood Boulevard 1-4	November 11, 2016		52,916			1.2	%		5.95	%
2334 Lundy Place	November 11, 2016		38,486			0.9	%		5.96	%
1100 Space Park Drive	December 11, 2016		52,889			1.2	%		5.89	%
2045 & 2055 LaFayette Street	February 6, 2017		64,621			1.5	%		5.93	%
150 South First Street	February 6, 2017		50,830			1.2	%		6.30	%
8025 North Interstate 35	March 6, 2017		6,561			0.2	%		4.09	%
731 East Trade Street	July 1, 2020		4,509			0.1	%		8.22	%
Unamortized net premiums			1,542			0.1	%
		$	792,376			18.5	%
Total Consolidated Debt		$	4,278,565			100.0	%
Weighted average cost of debt (including interest rate swaps)												4.25	%

(1) Assumes all extensions will be exercised.

Global Revolving Credit Facility

(in thousands)

	Maximum Available as of December 31, 2012		Available as of December 31, 2012 (2)		Drawn as of December 31, 2012
Global Revolving Credit Facility	$	1,800,000	$	1,042,620	$	723,729

(2) Net of letters of credit issued.

Page 14

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Debt Maturities

(unaudited, in thousands)

			2013		2014		2015		2016		2017		Thereafter		Total
Global revolving credit facility	(1	)	$	—	$	—	$	—	$	723,729	$	—	$	—	$	723,729
Unsecured term loan				—		—		—		—		757,839		—		757,839
Prudential shelf facility senior notes				33,000		—		67,000		25,000		50,000		—		175,000
5.875% notes due 2020				—		—		—		—		—		500,000		500,000
4.50% notes due 2015				—		—		375,000		—		—		—		375,000
5.25% notes due 2021				—		—		—		—		—		400,000		400,000
3.625% notes due 2022				—		—		—		—		—		300,000		300,000
5.50% exchangeable senior debentures due 2029	(2	)		—		266,400		—		—		—		—		266,400
Secured Term Debt	(3	)		3,025		132,966		—		—		—		—		135,991
200 Paul Avenue 1-4				1,932		2,048		68,666		—		—		—		72,646
Mundells Roundabout				69,612		—		—		—		—		—		69,612
2045 & 2055 LaFayette Street				998		1,060		1,125		1,195		60,243		—		64,621
34551 Ardenwood Boulevard 1-4				765		812		862		50,477		—		—		52,916
1100 Space Park Drive				774		821		871		50,423		—		—		52,889
600 West Seventh Street				1,626		1,723		1,825		46,000		—		—		51,174
150 South First Street				733		781		832		878		47,606		—		50,830
360 Spear Street				46,613		—		—		—		—		—		46,613
2334 Lundy Place				556		590		626		36,714		—		—		38,486
Clonshaugh Industrial Estate II				—		39,579		—		—		—		—		39,579
1500 Space Park Drive				35,682		—		—		—		—		—		35,682
Cressex 1				499		28,061		—		—		—		—		28,560
Paul van Vlissingenstraat 16				13,336		—		—		—		—		—		13,336
Chemin de l’Epinglier 2				9,649		—		—		—		—		—		9,649
Gyroscoopweg 2E-2F				8,492		—		—		—		—		—		8,492
Manchester Technopark				151		8,537		—		—		—		—		8,688
8025 North Interstate 35				247		257		268		5,789		—		—		6,561
731 East Trade Street				322		350		418		503		546		2,370		4,509
Total			$	228,012	$	483,985	$	517,493	$	940,708	$	916,234	$	1,202,370	$	4,288,802
Weighted Average Term to Initial Maturity	(2	)				4.8 Years
Weighted Average Term to Initial Maturity (assuming exercise of extension options)	(2	)				4.9 Years

(1) Assumes all extensions will be exercised.

(2) Assumes maturity of 5.50% exchangeable senior debentures due 2029 at first redemption date in April 2014.

(3) This amount represents six mortgage loans secured by our interests in 36 NE 2nd Street, 3300 East Birch Street, 100 & 200 Quannapowitt Parkway, 300 Boulevard East, 4849 Alpha Road, and 11830 Webb Chapel Road. Each of these loans is cross-collateralized by the six properties.

Note: Total excludes $1,542 of loan premiums, net and ($6,541), ($607), ($770), and ($3,861) of debt discount on 5.875% unsecured senior notes due 2020, 4.50% unsecured senior notes due 2015, 5.25% unsecured senior notes due 2021, and 3.625% unsecured senior notes due 2022, respectively.

Page 15

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Debt Analysis & Covenant Compliance

(unaudited)

Debt Covenant Ratios (1):	As of December 31, 2012
	4.50% Notes due 2015, 5.875% Notes due 2020 & 5.25% Notes due 2021				3.625% Notes due 2022			Global Revolving Credit Facility
	Required	Actual			Actual			Required	Actual
Total Outstanding Debt / Total Assets (2)	Less than 60%		44	%		41	%	Less than 60% (3)		36	%
Secured Debt / Total Assets (4)	Less than 40%		8	%		7	%	Less than 40%		7	%
Total Unencumbered Assets / Unsecured Debt	Greater than 150%		244	%		263	%			N/A
Consolidated EBITDA / Interest Expense (5)	Greater than 1.50x		4.0 x			4.0 x				N/A
Fixed Charge Coverage			N/A			N/A		Greater than 1.50x		3.3 x
Unsecured Debt / Total Unencumbered Asset Value (6)			N/A			N/A		Less than 60%		40	%
Unencumbered Assets Debt Service Coverage Ratio			N/A			N/A		Greater than 1.50x		5.6 x

(1) For a definition of the capitalized terms used in the table above and related footnotes, please refer to: the Indenture dated January 28, 2010, which governs the 5.875% Notes due 2020; the Indenture dated July 8, 2010, which governs the 4.50% Notes due 2015; the Indenture and Supplemental Indenture No. 1 dated March 8, 2011, which governs the 5.25% Notes due 2021; the Indenture and Supplemental Indenture No. 1 dated September 24, 2012, which governs the 3.625% Notes due 2022; and the Global Senior Credit Agreement dated as of November 3, 2011, which are filed as exhibits to our reports filed with the Securities and Exchange Commission.

(2) This ratio is referred to as the Leverage Ratio, defined as Consolidated Debt / Total Asset Value, under the Global Revolving Credit Facility. Under the 4.50% Notes due 2015, 5.875% Notes due 2020, and 5.25% Notes due 2021, Total Assets is calculated using Consolidated EBITDA capped at 9.0%. Under the 3.625% Notes due 2022, Total Assets is calculated using Consolidated EBITDA capped at 8.25%. Under the Global Revolving Credit Facility, Total Asset Value is calculated using Adjusted Net Operating Income capped at 8.25% for Data Center Assets and 7.50% for Other Assets.

(3) The Company has the right to maintain a Leverage Ratio of greater than 60.0% but less than or equal to 65.0% for up to four consecutive fiscal quarters during the term of the Facility following an acquisition of one or more Assets for a purchase price and other consideration in an amount not less than 5% of Total Asset Value.

(4) This ratio is referred to as the Secured Debt Leverage Ratio, defined as Consolidated Secured Debt / Total Asset Value, under the Global Revolving Credit Facility.

(5) Calculated as current quarter annualized Consolidated EBITDA to current quarter annualized Interest Expense (including capitalized interest and debt discounts).

(6) Assets must satisfy certain conditions to qualify for inclusion as an Unencumbered Asset under the Global Revolving Credit Facility.

Page 16

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Portfolio Summary ⁽¹⁾

As of December 31, 2012

	12/31/2012			9/30/2012
Number of Properties:
Domestic		91			90
International		26			20
Unconsolidated Joint Ventures		3			3
		120			113
Number of Buildings:
Domestic		138			137
International		30			24
Unconsolidated Joint Ventures		3			3
		171			164
Number of Markets:
Domestic		20			20
International		10			10
Unconsolidated Joint Ventures		2			2
		32			32
Net Rentable Square Feet: (2)
Domestic		16,774,252			16,584,357
International		2,714,505			2,337,708
Unconsolidated Joint Ventures		400,639			400,639
		19,889,396			19,322,704
Space Held for Development Square Feet:
Domestic		2,068,832			1,885,220
International		358,425			443,201
Unconsolidated Joint Ventures		0			0
		2,427,257			2,328,421
Portfolio Occupancy (3)		94.4	%		94.2	%
Same Store Pool Occupancy (3)		93.8	%		93.4	%

(1) Includes properties held through three unconsolidated joint ventures: 2001 Sixth Avenue, Seattle; 2020 Fifth Avenue, Seattle; and 33 Chun Choi Street, Hong Kong.

(2) We estimate the total net rentable square feet available for lease based on a number of factors in addition to contractually leased square feet, including available power, required support space and common area.

(3) Occupancy excludes space held for development. For some of our properties, we calculate occupancy based on factors in addition to contractually leased square feet, including available power, required support space and common area.

Note: 1-23 Templar Road, Sydney, Australia and 98 Radnor Drive, Melbourne, Australia were acquired in July 2011 and August 2011, respectively, and commissioned in Q4 2012. Both properties have been added to our operating property count.

Page 17

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Properties Acquired

For the three months ended December 31, 2012

Property	Metropolitan Area	Date Acquired	Purchase Price (in millions)			Net Rentable Square Footage of Property (1)		Space Held For Development		Percentage of Total Net Rentable Square Footage of Property Occupied (2)
701 Union Boulevard	Totowa, NJ	Nov-12	$	16.8			—		271,000		0.0	%
23 Waterloo Road	Macquarie Park, NSW, Australia	Dec-12	$	12.3	(3)		51,990		—		100.0	%
Bouygues Telecom Portfolio (4)	Paris, France	Dec-12	$	79.4	(3)		185,994		—		100.0	%
			$	108.5			237,984		271,000		100.0	%

(1) We estimate the total net rentable square feet available for lease based on a number of factors in addition to contractually leased square feet, including available power, required support space and common area.

(2) Occupancy percentages are calculated net of square footage of space held for development.

(3) Purchase price in USD is based on the exchange rate on the date of acquisition.

(4) The Bouygues Telecom Portfolio consists of 1 Rue Jean-Pierre, Liet-dit ie Christ de Saclay, and 127 Rue de Paris, which are all located in Paris, France. The Bouygues Telecom Portfolio is considered three properties for our property count.

Note: 1-23 Templar Road, Sydney, Australia and 98 Radnor Drive, Melbourne, Australia were acquired in July 2011 and August 2011, respectively, and commissioned in Q4 2012. Both properties have been added to our operating property count.

Page 18

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Occupancy Analysis

As of December 31, 2012

(Dollar amounts in thousands)

												Occupancy (3)												Net Rentable Square Feet as a % of			Annualized Rent as a % of
Property		Buildings		Acquisition Date	Property Type	Net Rentable Square Feet (1)		Space Held for Development		Annualized Rent ($000) (2)		As of 12/31/12			As of 9/30/12			As of 6/30/12			As of 3/31/12			Total Portfolio			Total Portfolio
NORTH AMERICA
Dallas
2323 Bryan Street			1	Jan-02	Data Center		453,539		23,568		15,545		77.7	%		76.9	%		76.1	%		75.2	%		2.3	%		1.5	%
2501 S. State Highway 121			9	Feb-12	Data Center		819,243		—		13,088		99.7	%		98.5	%		98.5	%		98.5	%		4.1			1.3
1232 Alma Road			1	Sep-09	Data Center		105,726		—		11,777		89.0	%		99.4	%		99.5	%		99.5	%		0.5			1.1
2440 Marsh Lane			1	Jan-03	Data Center		135,250		—		11,766		91.9	%		91.9	%		85.9	%		100.0	%		0.7			1.1
4849 Alpha Road			1	Apr-04	Data Center		125,538		—		11,138		100.0	%		99.7	%		99.7	%		99.7	%		0.6			1.1
4025 Midway Road			1	Jan-06	Data Center		100,590		—		9,919		98.4	%		99.9	%		99.9	%		100.0	%		0.5			0.9
400 S. Akard			1	Jun-12	Internet Gateway		269,563		—		7,910		94.7	%		94.7	%		84.6	%		N/A			1.4			0.8
11830 Webb Chapel Road			1	Aug-04	Data Center		365,647		—		7,735		96.3	%		88.1	%		88.1	%		88.1	%		1.8			0.7
900 Quality Way			1	Sep-09	Data Center		33,680		81,242		6,278		100.0	%		100.0	%		100.0	%		0.0	%		0.2			0.6
1215 Datacenter Park			1	Sep-09	Data Center		56,124		—		5,972		100.0	%		100.0	%		N/A			N/A			0.3			0.6
14901 FAA Boulevard			3	Jun-06	Data Center		263,700		—		5,061		100.0	%		100.0	%		100.0	%		100.0	%		1.3			0.5
900 Dorothy Drive			1	Aug-10	Data Center		56,176		—		1,565		100.0	%		100.0	%		100.0	%		100.0	%		0.3			0.1
904 Quality Way			1	Sep-09	Data Center		46,750		—		972		100.0	%		100.0	%		N/A			N/A			0.2			0.1
905 Security Row			1	Sep-09	Data Center		—		249,657		—		0.0	%		0.0	%		0.0	%		0.0	%		0.0			0.0
1400 N. Bowser Road			1	Sep-09	Data Center		—		246,940		—		0.0	%		0.0	%		0.0	%		0.0	%		0.0			0.0
1301 International Parkway			1	Sep-09	Data Center		—		20,500		—		0.0	%		0.0	%		0.0	%		0.0	%		0.0			0.0
							2,831,526		621,907		108,726		94.5	%		93.4	%		91.7	%		93.0	%		14.2	%		10.4	%
Silicon Valley
1350 Duane & 3080 Raymond			2	Oct-09	Data Center		185,000		—		10,273		100.0	%		100.0	%		100.0	%		100.0	%		0.9	%		1.0	%
3011 Lafayette Street			1	Jan-07	Data Center		90,780		—		10,246		100.0	%		100.0	%		100.0	%		100.0	%		0.5			1.0
1100 Space Park Drive			1	Nov-04	Internet Gateway		165,297		—		9,597		100.0	%		100.0	%		92.7	%		100.0	%		0.8			0.9
1500 Space Park Drive			1	Sep-07	Data Center		51,615		—		9,325		100.0	%		100.0	%		100.0	%		100.0	%		0.3			0.9
1525 Comstock Street			1	Sep-07	Data Center		42,385		—		8,532		100.0	%		100.0	%		100.0	%		100.0	%		0.2			0.8
3105 &3205 Alfred Street.			2	May-10	Data Center		49,858		—		8,369		87.9	%		87.9	%		87.9	%		64.1	%		0.3			0.8
2045 & 2055 LaFayette Street			2	May-04	Data Center		300,000		—		7,200		100.0	%		100.0	%		100.0	%		100.0	%		1.5			0.7
1725 Comstock Street			1	Apr-10	Data Center		39,643		—		6,670		100.0	%		100.0	%		100.0	%		100.0	%		0.2			0.6
150 South First Street			1	Sep-04	Data Center		179,761		—		6,500		93.7	%		93.7	%		93.7	%		99.0	%		0.9			0.6
1201 Comstock Street			1	Jun-08	Data Center		24,000		—		4,598		100.0	%		100.0	%		100.0	%		100.0	%		0.1			0.4
2334 Lundy Place			1	Dec-02	Data Center		130,752		—		4,525		100.0	%		100.0	%		100.0	%		100.0	%		0.7			0.4
4650 Old Ironsides Drive			1	Jun-05	Data Center		124,383		—		3,954		100.0	%		100.0	%		100.0	%		100.0	%		0.6			0.4
2401 Walsh Street			1	Jun-05	Data Center		167,932		—		3,723		100.0	%		100.0	%		100.0	%		100.0	%		0.8			0.4
2950 Zanker Road			1	Aug-10	Data Center		69,700		—		3,060		100.0	%		100.0	%		100.0	%		100.0	%		0.4			0.3
2403 Walsh Street			1	Jun-05	Data Center		103,940		—		2,304		100.0	%		100.0	%		100.0	%		100.0	%		0.5			0.2
4700 Old Ironsides Drive			1	Jun-05	Data Center		90,139		—		1,998		100.0	%		100.0	%		100.0	%		100.0	%		0.5			0.2
444 Toyama Drive			1	Sep-09	Data Center		42,083		—		1,885		100.0	%		100.0	%		100.0	%		100.0	%		0.2			0.2
2805 Lafayette Street	(4)		1	Aug-10	Data Center		32,133		117,867		—		0.0	%		0.0	%		0.0	%		0.0	%		0.2			0.0
							1,889,401		117,867		102,759		97.4	%		99.1	%		98.4	%		98.9	%		9.6	%		9.8	%
Northern Virginia
43881 Devin Shafron Drive			1	Mar-07	Data Center		180,000		—		18,693		100.0	%		100.0	%		100.0	%		100.0	%		0.8	%		1.8	%
43915 Devin Shafron Drive			1	May-09	Data Center		129,033		3,247		15,876		100.0	%		100.0	%		100.0	%		100.0	%		0.6			1.5
43791 Devin Shafron Drive			1	Mar-07	Data Center		132,806		2,194		9,653		77.4	%		77.4	%		100.0	%		100.0	%		0.7			0.9
43830 Devin Shafron Drive			1	May-09	Data Center		99,652		13,598		9,608		84.4	%		84.3	%		74.6	%		31.7	%		0.5			0.9
4050 Lafayette Center Drive			1	Jul-10	Data Center		42,374		—		6,655		99.0	%		99.0	%		99.0	%		99.0	%		0.2			0.6
4030 Lafayette Center Drive			1	Jul-10	Data Center		72,696		—		5,837		100.0	%		100.0	%		100.0	%		100.0	%		0.4			0.6
45901 & 45845 Nokes Boulevard			2	Dec-09	Data Center		167,160		—		4,612		100.0	%		100.0	%		100.0	%		100.0	%		0.8			0.4
44470 Chilum Place			1	Feb-07	Data Center		95,440		—		4,419		100.0	%		100.0	%		100.0	%		100.0	%		0.5			0.4
43790 Devin Shafron Drive			1	May-09	Data Center		152,138		—		3,134		100.0	%		100.0	%		100.0	%		100.0	%		0.8			0.3
21110 Ridgetop Circle			1	Jan-07	Data Center		135,513		—		2,906		100.0	%		100.0	%		100.0	%		100.0	%		0.7			0.3
21561 & 21571 Beaumeade Circle			2	Dec-09	Data Center		164,453		—		2,846		100.0	%		100.0	%		100.0	%		100.0	%		0.8			0.3
1506 Moran Road			2	Dec-11	Data Center		78,295		—		2,365		100.0	%		100.0	%		100.0	%		100.0	%		0.4			0.2
21551 Beaumeade Circle			1	Dec-09	Data Center		152,504		—		2,027		100.0	%		100.0	%		100.0	%		100.0	%		0.8			0.2
1807 Michael Faraday Court			1	Oct-06	Data Center		19,237		—		1,861		100.0	%		100.0	%		100.0	%		100.0	%		0.1			0.2
7505 Mason King Court			1	Nov-08	Data Center		109,650		—		1,820		100.0	%		100.0	%		100.0	%		100.0	%		0.6			0.2
251 Exchange Place			1	Nov-05	Data Center		70,982		—		1,689		100.0	%		100.0	%		100.0	%		100.0	%		0.4			0.2
43831 Devin Shafron Drive			1	Mar-07	Data Center		117,071		—		1,538		100.0	%		100.0	%		100.0	%		100.0	%		0.6			0.1
8100 Boone Boulevard			2	Oct-06	Data Center		17,015		—		860		24.4	%		24.9	%		24.9	%		100.0	%		0.1			0.1
4040 Lafayette Center Drive			1	Jul-10	Data Center		—		30,333		—		N/A			N/A			N/A			N/A			0.0			0.0
							1,936,019		49,372		96,399		97.0	%		96.9	%		98.4	%		97.5	%		9.8	%		9.2	%
New York
111 Eighth Avenue	(5)		1	Oct-06	Internet Gateway		116,843		—		20,496		100.0	%		99.3	%		99.3	%		95.3	%		0.6	%		2.0	%
365 S Randolphville Road			1	Feb-08	Data Center		172,507		92,285		19,146		98.5	%		95.8	%		88.6	%		88.6	%		0.9			1.8
3 Corporate Place			1	Dec-05	Data Center		276,931		—		18,757		100.0	%		100.0	%		100.0	%		100.0	%		1.4			1.8
300 Boulevard East			1	Nov-02	Data Center		346,819		22,962		17,972		92.3	%		89.9	%		89.9	%		89.9	%		1.7			1.7
60 & 80 Merritt Boulevard			1	Jan-10	Data Center		169,540		—		12,858		100.0	%		100.0	%		100.0	%		100.0	%		0.9			1.2
650 Randolph Road			1	Jun-08	Data Center		—		127,790		—		0.0	%		0.0	%		0.0	%		0.0	%		0.0			0.0
410 Commerce Boulevard	(6)		0	Aug-12	Data Center		—		—		—		N/A			N/A			N/A			N/A			0.0			0.0
701 Union Boulevard			0	Nov-12	Data Center		—		271,000				N/A			N/A			N/A			N/A			0.0			0.0
							1,082,640		514,037		89,229		97.3	%		96.0	%		94.9	%		94.5	%		5.5	%		8.5	%

Page 19

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Occupancy Analysis

As of December 31, 2012

(Dollar amounts in thousands)

											Occupancy (3)												Net Rentable Square Feet as a % of			Annualized Rent as a % of
Property	Buildings		Acquisition Date	Property Type	Net Rentable Square Feet (1)		Space Held for Development		Annualized Rent ($000) (2)		As of 12/31/12			As of 9/30/12			As of 6/30/12			As of 3/31/12			Total Portfolio			Total Portfolio
San Francisco
200 Paul Avenue		4	Nov-04	Internet Gateway		494,120		33,560		29,028		99.3	%		99.3	%		96.3	%		99.3	%		2.5	%		2.8	%
Digital 365 Main Street		1	Jul-10	Data Center		226,981		—		26,179		84.0	%		91.6	%		91.7	%		81.3	%		1.1			2.5
Digital 720 2nd Street		1	Jul-10	Data Center		121,220		—		15,456		89.5	%		87.7	%		87.4	%		86.9	%		0.6			1.5
360 Spear Street		1	Dec-11	Data Center		154,950		—		8,185		100.0	%		100.0	%		100.0	%		100.0	%		0.8			0.8
						997,271		33,560		78,848		94.7	%		96.2	%		94.8	%		93.9	%		5.0	%		7.6	%
Chicago
350 E Cermak Road		1	May-05	Internet Gateway		1,129,226		4,513		68,725		98.5	%		98.5	%		98.3	%		98.7	%		5.7	%		6.6	%
600-780 S. Federal		1	Sep-05	Internet Gateway		142,166		19,381		7,092		79.0	%		76.6	%		76.6	%		67.5	%		0.7			0.7
9333, 9355, 9377 Grand Avenue		3	May-12	Technology Manufacturing		457,429		117,515		1,895		100.0	%		100.0	%		100.0	%		N/A			2.3			0.2
						1,728,821		141,409		77,712		97.3	%		97.1	%		97.0	%		94.8	%		8.7	%		7.5	%
Phoenix
2121 South Price Road		1	Jul-10	Data Center		367,665		151,814		35,725		80.3	%		84.1	%		84.1	%		83.8	%		1.8	%		3.4	%
120 E Van Buren Street		1	Jul-06	Internet Gateway		287,514		—		21,924		88.2	%		91.1	%		91.2	%		90.1	%		1.4			2.1
2055 East Technology Circle		1	Oct-06	Data Center		76,350		—		8,245		100.0	%		100.0	%		100.0	%		100.0	%		0.4			0.8
						731,529		151,814		65,894		85.5	%		88.7	%		88.7	%		88.1	%		3.6	%		6.3	%
Boston
128 First Avenue		1	Jan-10	Data Center		274,750		—		22,535		97.3	%		97.1	%		99.2	%		99.5	%		1.4	%		2.2	%
55 Middlesex Turnpike		1	Jan-10	Data Center		106,000		—		12,859		96.2	%		96.2	%		90.5	%		90.6	%		0.5			1.2
100 Quannapowitt Parkway		2	Jun-04	Data Center		286,550		100,406		6,349		89.7	%		89.6	%		88.7	%		88.0	%		1.4			0.6
115 Second Avenue		1	Oct-05	Data Center		66,730		—		3,756		100.0	%		100.0	%		100.0	%		100.0	%		0.3			0.4
600 Winter Street		1	Sep-06	Data Center		30,400		—		842		100.0	%		100.0	%		100.0	%		100.0	%		0.2			0.1
						764,430		100,406		46,341		94.7	%		94.5	%		94.2	%		94.0	%		3.8	%		4.5	%
Los Angeles
600 West Seventh Street		1	May-04	Internet Gateway		489,722		—		22,936		98.4	%		98.7	%		98.4	%		98.7	%		2.5	%		2.2	%
2260 East El Segundo Boulevard		1	Jul-10	Data Center		132,240		—		12,864		99.6	%		100.0	%		100.0	%		100.0	%		0.7			1.2
200 North Nash Street		1	Jun-05	Data Center		113,606		—		2,519		100.0	%		100.0	%		100.0	%		100.0	%		0.6			0.2
3015 Winona Avenue		1	Dec-04	Data Center		82,911		—		1,672		100.0	%		100.0	%		100.0	%		100.0	%		0.4			0.2
3300 East Birch Street		1	Aug-03	Data Center		68,807		—		1,547		100.0	%		100.0	%		100.0	%		100.0	%		0.3			0.1
						887,286		—		41,538		99.1	%		99.3	%		99.1	%		99.3	%		4.5	%		3.9	%
Atlanta
375 Riverside Parkway		1	Jun-03	Data Center		250,191		—		8,417		100.0	%		99.2	%		99.2	%		99.2	%		1.3	%		0.8	%
760 Doug Davis Drive		1	Dec-11	Data Center		334,306		—		6,376		100.0	%		100.0	%		100.0	%		100.0	%		1.7			0.6
101 Aquila Way		1	Apr-06	Data Center		313,581		—		1,411		100.0	%		100.0	%		100.0	%		100.0	%		1.6			0.1
						898,078		—		16,204		100.0	%		99.8	%		99.8	%		99.8	%		4.6	%		1.5	%
Philadelphia
833 Chestnut Street		1	Mar-05	Data Center		592,295		62,463		13,021		92.0	%		92.0	%		92.0	%		92.0	%		3.0	%		1.2	%
						592,295		62,463		13,021		92.0	%		92.0	%		92.0	%		92.0	%		3.0	%		1.2	%
Denver
11900 East Cornell Avenue		1	Sep-12	Data Center		285,840		—		5,878		94.3	%		94.3	%		N/A			N/A			1.4	%		0.6	%
8534 Concord Center Drive		1	Jun-05	Data Center		85,660		—		3,674		100.0	%		100.0	%		100.0	%		100.0	%		0.4			0.4
						371,500		—		9,552		95.6	%		95.6	%		100.0	%		100.0	%		1.8	%		1.0	%
Houston
12001 - 12245 North Freeway		6	Apr-06	Data Center		282,483		18,222		10,392		91.9	%		84.5	%		77.1	%		88.9	%		1.3	%		1.0	%
						282,483		18,222		10,392		91.9	%		84.5	%		77.1	%		88.9	%		1.3	%		1.0	%
St. Louis
900 Walnut Street		1	Aug-07	Internet Gateway		105,776		6,490		4,423		99.9	%		99.9	%		99.9	%		99.9	%		0.5	%		0.4	%
210 N Tucker Boulevard		1	Aug-07	Data Center		184,490		152,926		4,306		83.3	%		71.7	%		76.2	%		75.4	%		0.9			0.4
						290,266		159,416		8,729		89.3	%		82.0	%		85.5	%		85.4	%		1.4	%		0.8	%
Miami
36 NE 2nd Street		1	Jan-02	Internet Gateway		162,140		—		5,060		99.1	%		95.9	%		95.9	%		95.9	%		0.8	%		0.5	%
2300 NW 89th Place		2	Sep-06	Data Center		64,174		—		673		100.0	%		100.0	%		100.0	%		100.0	%		0.3			0.1
						226,314		—		5,733		99.3	%		97.0	%		97.0	%		97.0	%		1.1	%		0.6	%
Sacramento
11085 Sun Center Drive		1	Sep-11	Data Center		69,048		—		2,794		100.0	%		100.0	%		100.0	%		100.0	%		0.3	%		0.3	%
3065 Gold Camp Drive		1	Oct-04	Data Center		40,394		23,397		1,912		100.0	%		100.0	%		33.6	%		100.0	%		0.2			0.2
						109,442		23,397		4,706		100.0	%		100.0	%		75.8	%		100.0	%		0.5	%		0.5	%
Portland
3825 NW Aloclek Place		1	Aug-11	Data Center		48,574		—		7,873		100.0	%		100.0	%		N/A			N/A			0.1	%		0.8	%
						48,574		—		7,873		100	%		100	%		—			—			0.1	%		0.8	%
Charlotte
125 North Myers		1	Aug-05	Internet Gateway		25,402		—		1,392		100.0	%		100.0	%		100.0	%		100.0	%		0.1	%		0.1	%
731 East Trade Street		1	Aug-05	Internet Gateway		40,879		—		1,311		100.0	%		100.0	%		100.0	%		100.0	%		0.2			0.1
113 North Myers		1	Aug-05	Internet Gateway		29,218		—		936		100.0	%		100.0	%		100.0	%		100.0	%		0.1			0.1
						95,499		—		3,639		100.0	%		100.0	%		100.0	%		100.0	%		0.4	%		0.3	%

Page 20

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Occupancy Analysis

As of December 31, 2012

(Dollar amounts in thousands)

											Occupancy (3)												Net Rentable Square Feet as a % of			Annualized Rent as a % of
Property	Buildings		Acquisition Date	Property Type	Net Rentable Square Feet (1)		Space Held for Development		Annualized Rent ($000) (2)		As of 12/31/12			As of 9/30/12			As of 6/30/12			As of 3/31/12			Total Portfolio			Total Portfolio
Toronto, Canada
6800 Millcreek Drive		1	Apr-06	Data Center		83,758		—		2,034		100.0	%		100.0	%		100.0	%		100.0	%		0.4	%		0.2	%
						83,758		—		2,034		100.0	%		100.0	%		100.0	%		100.0	%		0.4	%		0.2	%
Minneapolis/St. Paul
1125 Energy Park Drive		1	Mar-05	Data Center		112,827		—		1,437		100.0	%		100.0	%		100.0	%		100.0	%		0.6	%		0.2	%
						112,827		—		1,437		100.0	%		100.0	%		100.0	%		100.0	%		0.6	%		0.2	%
Austin
8025 North Interstate 35		1	May-12	Data Center		62,237		—		934		100.0	%		100.0	%		100.0	%		N/A			0.3	%		0.1	%
7620 Metro Center Drive		1	Dec-05	Data Center		45,000		—		325		69.6	%		69.6	%		67.1	%		100.0	%		0.2			0.0
7500 Metro Center Drive		1	Dec-05	Data Center		—		74,962		—		0.0	%		0.0	%		0.0	%		0.0	%		0.0			0.0
						107,237		74,962		1,259		87.2	%		87.2	%		86.2	%		100.0	%		0.5	%		0.1	%
EUROPE
London, England
Unit 21 Goldworth Park Trading Est		1	Jul-12	Data Center		340,325		139,917		51,289		99.3	%		98.9	%		N/A			N/A			1.7	%		4.9	%
The Chess Building		1	Jul-12	Data Center		133,000		—		19,040		97.3	%		97.6	%		N/A			N/A			0.7			1.8
Unit B Prologis Park		1	Jul-12	Data Center		120,000		—		16,392		100.0	%		100.0	%		N/A			N/A			0.6			1.6
3 St. Anne’s Boulevard		1	Dec-07	Data Center		96,147		—		12,368		73.2	%		72.7	%		65.7	%		60.3	%		0.5			1.2
Mundells Roundabout		1	Apr-07	Data Center		113,464		—		8,047		100.0	%		100.0	%		100.0	%		100.0	%		0.6			0.8
Cressex 1		1	Dec-07	Data Center		50,847		—		7,438		100.0	%		100.0	%		100.0	%		100.0	%		0.3			0.7
6 Braham Street		1	Jul-02	Internet Gateway		63,233		—		5,062		100.0	%		100.0	%		100.0	%		100.0	%		0.3			0.5
2 St. Anne’s Boulevard		1	Dec-07	Data Center		30,612		—		3,563		100.0	%		100.0	%		100.0	%		100.0	%		0.2			0.3
1 St. Anne’s Boulevard		1	Dec-07	Data Center		20,219		—		294		100.0	%		100.0	%		100.0	%		100.0	%		0.1			0.0
Fountain Court		1	Jul-11	Data Center		42,764		89,814		136		16.8	%		37.6	%		0.0	%		0.0	%		0.2			0.0
						1,010,611		229,731		123,629		93.3	%		95.4	%		91.2	%		89.8	%		5.2	%		11.8	%
Paris, France
114 Rue Ambroise Croizat		2	Dec-06	Internet Gateway		332,795		19,351		20,414		93.5	%		93.5	%		93.5	%		93.4	%		1.7	%		2.0	%
1 Rue Jean-Pierre		1	Dec-12	Data Center		104,666		—		4,618		100.0	%		N/A			N/A			N/A			0.5			0.4
127 Rue de Paris		1	Dec-12	Data Center		59,991		—		1,979		100.0	%		N/A			N/A			N/A			0.3			0.2
Liet-dit ie Christ de Saclay		1	Dec-12	Data Center		21,337		—		660		100.0	%		N/A			N/A			N/A			0.1			0.1
						518,789		19,351		27,671		95.8	%		93.5	%		N/A			93.4	%		2.6	%		2.7	%
Dublin, Ireland
Unit 9 Blanchardstown Corporate Center		1	Dec-06	Data Center		120,000		—		10,371		98.4	%		97.7	%		98.8	%		99.0	%		0.6	%		1.0	%
Clonshaugh Industrial Estate II		1	Aug-05	Data Center		124,500		—		8,763		100.0	%		100.0	%		100.0	%		100.0	%		0.6			0.8
Clonshaugh Industrial Estate I		1	Feb-06	Data Center		20,000		—		1,514		100.0	%		100.0	%		100.0	%		100.0	%		0.1			0.1
						264,500		—		20,648		99.3	%		98.9	%		99.4	%		99.4	%		1.3	%		1.9	%
Amsterdam, Netherlands
Paul van Vlissingenstraat 16		1	Aug-05	Data Center		112,472		—		7,310		81.4	%		81.4	%		81.0	%		73.7	%		0.6	%		0.7	%
Cateringweg 5		1	Jun-10	Data Center		55,972		—		5,522		100.0	%		100.0	%		100.0	%		100.0	%		0.3			0.5
Naritaweg 52		1	Dec-07	Data Center		63,260		—		2,652		100.0	%		100.0	%		100.0	%		100.0	%		0.3			0.3
Gyroscoopweg 2E-2F		2	Jul-06	Data Center		55,585		—		1,251		100.0	%		100.0	%		100.0	%		100.0	%		0.3			0.1
						287,289		—		16,735		92.7	%		92.7	%		92.4	%		89.7	%		1.5	%		1.6	%
Manchester, England
Manchester Technopark		1	Jun-08	Data Center		38,016		—		1,915		100.0	%		100.0	%		100.0	%		100.0	%		0.2	%		0.2	%
						38,016		—		1,915		100.0	%		100.0	%		100.0	%		100.0	%		0.2	%		0.2	%
Geneva, Switzerland
Chemin de l Epinglier 2		1	Nov-05	Data Center		59,190		—		1,721		100.0	%		100.0	%		100.0	%		100.0	%		0.3	%		0.2	%
						59,190		—		1,721		100.0	%		100.0	%		100.0	%		100.0	%		0.3	%		0.2	%
ASIA PACIFIC
Singapore
29A International Business Park		1	Nov-10	Data Center		306,172		64,328		12,816		77.2	%		58.9	%		55.9	%		55.9	%		1.5	%		1.2	%
						306,172		64,328		12,816		77.2	%		58.9	%		55.9	%		55.9	%		1.5	%		1.2	%
Melbourne
98 Radnor Drive		1	Aug-11	Data Center		52,988		—		7,809		100.0	%		N/A			N/A			N/A			0.3	%		0.7	%
						52,988		—		7,809		100.0	%		N/A			N/A			N/A			0.3	%		0.7	%
Sydney
1-23 Templar Road		1	Jul-11	Data Center		41,202		45,015		1,588		16.8	%		N/A			N/A			N/A			0.2	%		0.2	%
23 Waterloo Road		1	Dec-12	Data Center		51,990		—		1,307		100.0	%		N/A			N/A			N/A			0.3			0.1
						93,192		45,015		2,895		63.2	%		N/A			N/A			N/A			0.5	%		0.3	%

Page 21

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Occupancy Analysis

As of December 31, 2012

(Dollar amounts in thousands)

												Occupancy (3)												Net Rentable Square Feet as a % of			Annualized Rent as a % of
Property		Buildings		Acquisition Date	Property Type	Net Rentable Square Feet (1)		Space Held for Development		Annualized Rent ($000) (2)		As of 12/31/12			As of 9/30/12			As of 6/30/12			As of 3/31/12			Total Portfolio			Total Portfolio
NON-DATACENTER PROPERTIES
34551 Ardenwood Boulevard			4	Jan-03	Technology Manufacturing		307,657		—		7,000		100.0	%		100.0	%		100.0	%		100.0	%		1.5	%		0.7	%
2010 East Centennial Circle			1	May-03	Technology Manufacturing		113,405		—		3,194		100.0	%		100.0	%		100.0	%		100.0	%		0.6			0.3
1 Savvis Parkway			1	Aug-07	Technology Office		156,000		—		3,042		100.0	%		100.0	%		100.0	%		100.0	%		0.8			0.3
908 Quality Way			1	Sep-09	Technology Office		14,400		—		24		100.0	%		100.0	%		100.0	%		100.0	%		0.1			0.0
47700 Kato Road & 1055 Page Avenue	(7)		2	Sep-03	Technology Manufacturing		199,352		—		—		0.0	%		0.0	%		0.0	%		100.0	%		1.0			0.0
							790,814		—		13,260		74.8	%		76.4	%		74.8	%		100.0	%		4.0	%		1.3	%
Consolidated Portfolio Total/Weighted Average			168				19,488,757		2,427,257		1,021,124		94.4	%		94.2	%		93.5	%		94.8	%
UNCONSOLIDATED JOINT VENTURES
Seattle
2001 Sixth Avenue			1	Nov-06	Data Center		400,639		—		23,858		93.7	%		94.1	%		93.7	%		92.7	%
2020 Fifth Avenue			1	Oct-11	Data Center		—		—		—		N/A			N/A			N/A			N/A
							400,639		—		23,858		93.0	%		93.0	%		93.0	%		95.8	%
Hong Kong
33 Chun Choi St			1	Oct-12	Data Center		—		—		—		N/A			N/A			N/A			N/A
							—		—		—		N/A			N/A			N/A			N/A
Unconsolidated Portfolio Total/Weighted Average			3				400,639		—		23,858
Portfolio Total/Weighted Average			171				19,889,396		2,427,257		1,044,982		94.4	%		94.2	%		93.5	%		94.8	%

(1) We estimate the total net rentable square feet available for lease based on a number of factors in addition to contractually leased square feet, including available power, required support space and common area.

(2) Annualized base rent represents the monthly contractual base rent (defined as cash base rent before abatements) under existing leases as of December 31, 2012 multiplied by 12.

(3) Occupancy excludes space held for development. For some of our properties, we calculate occupancy based on factors in addition to contractually leased square feet, including available power, required support space and common area.

(4) Building formerly referred to as 800 Central Expressway.

(5) Includes approximately 33,700 rentable square feet from a leasehold interest acquisition.

(6) Includes approximately 27,943 rentable square feet from a leasehold interest acquisition.

(7) Includes 16,302 square feet currently subject to remeasurement.

Page 22

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Top 20 Tenants by Annualized Rent

As of December 31, 2012

(Dollar amounts in thousands)

	Tenant			Number of  Locations		Total Occupied Square Feet (1)		Percentage of Net Rentable Square Feet			Annualized Rent (2)		Percentage of Annualized Rent			Weighted Average Remaining Lease Term in Months
1	CenturyLink, Inc.	(3	)		36		2,784,477		14.3	%	$	92,551		9.1	%		87
2	Softlayer Technologies, Inc.				8		372,979		1.9	%	$	41,278		4.0	%		111
3	TelX Group, Inc.				12		288,940		1.5	%	$	39,957		3.9	%		172
4	Equinix Operating Company, Inc.				9		878,062		4.5	%	$	34,059		3.3	%		74
5	Facebook, Inc.				4		241,865		1.2	%	$	31,704		3.1	%		65
6	Morgan Stanley				5		182,592		0.9	%	$	27,420		2.7	%		21
7	AT & T				18		660,442		3.4	%	$	26,352		2.6	%		73
8	Deutsche Bank AG				3		112,961		0.6	%	$	23,147		2.3	%		69
9	Verizon Communications, Inc.				33		378,463		1.9	%	$	22,230		2.2	%		69
10	NTT Communications Company				6		321,061		1.6	%	$	19,210		1.9	%		79
11	Level 3 Communications, LLC				33		375,223		1.9	%	$	15,509		1.5	%		91
12	Amazon				7		457,135		2.3	%	$	13,942		1.4	%		97
13	SunGard Availability Services LP				6		315,427		1.6	%	$	13,773		1.3	%		77
14	Nomura International PLC				2		63,137		0.3	%	$	12,467		1.2	%		85
15	Pfizer, Inc.				1		97,069		0.5	%	$	11,202		1.1	%		60
16	Rackspace US, Inc.				3		96,139		0.5	%	$	11,106		1.1	%		132
17	TATA Communications (UK)				3		112,533		0.6	%	$	10,995		1.1	%		60
18	Yahoo! Inc.				2		110,847		0.6	%	$	10,668		1.0	%		58
19	BT Americas, Inc.				3		67,685		0.3	%	$	9,866		1.0	%		54
20	Sprint Communications Co., LP				6		173,319		0.9	%	$	9,715		1.0	%		21
	Total/Weighted Average						8,090,356		41.3	%	$	477,151		46.8	%		83

(1) Occupied square footage is defined as leases that commenced on or before December 31, 2012. For some of our properties, we calculate occupancy based on factors in addition to contractually leased square feet, including available power, required support space and common area.

(2) Annualized base rent represents the monthly contractual base rent (defined as cash base rent before abatements) under existing leases as of December 31, 2012 multiplied by 12.

(3) Represents leases with Savvis Communications Corporation and Qwest Communications International Inc. (or affiliates thereof), which are our direct tenants. CenturyLink, Inc. acquired Qwest in Q2 2011 and Savvis in Q3 2011, and Qwest and Savvis are now wholly owned subsidiaries of CenturyLink.

Page 23

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Lease Expirations and Lease Distribution

Lease Expirations

As of December 31, 2012

(Dollar amounts in thousands)

Year	Number of  Leases Expiring (1)		Square Footage of Expiring Leases (2)		Percentage of Net Rentable Square Feet (2)			Annualized Rent (3)		Percentage of Annualized Rent			Annualized Rent Per Occupied Square Foot		Annualized Rent Per Occupied Square Foot at Expiration		Annualized Rent at Expiration
Available				1,094,500		5.6	%				0.00	%
2013		423		783,453		4.0	%	$	65,908		6.5	%	$	84.12	$	84.74	$	66,387
2014		269		1,394,839		7.2	%		98,976		9.7	%		70.96		73.29		102,226
2015		222		2,455,056		12.6	%		93,116		9.1	%		37.93		40.35		99,063
2016		180		1,748,147		9.0	%		84,154		8.2	%		48.14		51.88		90,691
2017		165		1,380,891		7.1	%		71,782		7.0	%		51.98		54.06		74,648
2018		107		1,228,803		6.3	%		75,179		7.4	%		61.18		69.27		85,116
2019		109		1,858,739		9.5	%		135,730		13.3	%		73.02		85.27		158,498
2020		81		907,612		4.6	%		64,171		6.3	%		70.70		86.48		78,492
2021		78		1,220,703		6.3	%		72,076		7.1	%		59.04		75.97		92,741
2022		80		1,367,707		7.0	%		65,668		6.4	%		48.01		59.46		81,325
Thereafter		302		4,048,307		20.8	%		194,364		19.0	%		48.01		61.57		249,238
Portfolio Total / Weighted Average		2,016		19,488,757		100.0	%	$	1,021,124		100.0	%	$	55.51	$	64.06	$	1,178,425

Square Feet Under Lease	Number of  Leases (1)		Percentage of All Leases			Total Net Rentable Square Feet (2)		Percentage of Net Rentable Square Feet  (2)			Annualized Rent (3)		Percentage of Annualized Rent
Available							1,094,500		5.6	%		—		0.0	%
2,500 or less		1,265		62.8	%		584,359		3.0	%	$	53,589		5.2	%
2,501 - 10,000		339		16.8	%		1,982,758		10.2	%		175,159		17.2	%
10,001 - 20,000		191		9.5	%		2,792,094		14.3	%		249,435		24.4	%
20,001 - 40,000		115		5.7	%		3,287,538		16.9	%		224,612		22.0	%
40,001 - 100,000		73		3.6	%		4,757,900		24.4	%		198,635		19.5	%
Greater than 100,000		33		1.6	%		4,989,608		25.6	%		119,694		11.7	%
Portfolio Total		2,016		100.0	%		19,488,757		100.0	%	$	1,021,124		100.0	%

(1) Includes license and similar agreements that upon expiration will be automatically renewed, mostly on a month-to-month basis. Number of leases represents the leased-unit count; a lease could include multiple units.

(2) For some of our properties, we calculate square footage based on factors in addition to contractually leased square feet, including available power, required support space and common area. We estimate the total net rentable square feet available for lease based on a number of factors in addition to contractually leased square feet, including available power, required support space and common area.

(3) Annualized rent represents the monthly contractual base rent (defined as cash base rent before abatements) under existing leases as of December 31, 2012 multiplied by 12.

Page 24

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Lease Expirations - By Product Type

As of December 31, 2012

(Dollar amounts in thousands)

TURN-KEY FLEX

Year	Number of Leases Expiring (1)		Square Footage of Expiring Leases (2)		Percentage of Net Rentable Square Feet (2)			Annualized Rent (3)		Percentage of Annualized Rent			Annualized Rent Per Occupied Square Foot		Annualized Rent Per Occupied Square Foot at Expiration		Annualized Rent at Expiration
Available				217,110		1.1	%		—		0.0	%
2013		143		328,969		1.7	%	$	43,462		4.3	%	$	132.12	$	133.67	$	43,973
2014		104		355,013		1.8	%		54,000		5.3	%		152.11		158.15		56,144
2015		70		181,251		0.9	%		22,456		2.2	%		123.89		132.13		23,949
2016		76		309,397		1.6	%		47,020		4.6	%		151.97		161.44		49,950
2017		72		415,672		2.1	%		45,970		4.5	%		110.59		112.90		46,930
2018		47		363,509		1.9	%		48,358		4.7	%		133.03		152.11		55,295
2019		43		574,769		3.0	%		91,731		9.0	%		159.60		186.73		107,328
2020		35		282,170		1.4	%		43,672		4.3	%		154.77		193.14		54,497
2021		42		342,529		1.8	%		53,423		5.2	%		155.97		204.77		70,139
2022		40		348,209		1.8	%		38,573		3.8	%		110.78		137.40		47,845
Thereafter		120		840,613		4.3	%		88,230		8.6	%		104.96		141.04		118,560
Portfolio Total / Weighted Average		792		4,559,211		23.4	%	$	576,895		56.5	%	$	132.86	$	155.36	$	674,610

POWERED BASE BUILDING

Year	Number of Leases Expiring (1)		Square Footage of Expiring Leases (2)		Percentage of Net Rentable Square Feet (2)			Annualized Rent (3)		Percentage of Annualized Rent			Annualized Rent Per Occupied Square Foot		Annualized Rent Per Occupied Square Foot at Expiration		Annualized Rent at Expiration
Available				418,375		2.1	%		—		0.0	%
2013		26		59,674		0.3	%	$	4,009		0.4	%	$	67.18	$	67.18	$	4,009
2014		34		698,339		3.6	%		27,174		2.7	%		38.91		39.48		27,571
2015		51		1,613,580		8.3	%		56,292		5.5	%		34.89		36.83		59,435
2016		37		1,215,739		6.2	%		29,316		2.9	%		24.11		25.72		31,269
2017		19		244,914		1.3	%		7,004		0.7	%		28.60		31.79		7,786
2018		13		601,993		3.1	%		20,954		2.1	%		34.81		38.36		23,091
2019		20		1,106,612		5.7	%		39,740		3.9	%		35.91		41.71		46,161
2020		15		354,381		1.8	%		13,474		1.3	%		38.02		46.85		16,602
2021		7		680,655		3.5	%		14,757		1.4	%		21.68		26.68		18,163
2022		14		807,407		4.1	%		24,182		2.4	%		29.95		37.21		30,045
Thereafter		110		2,671,340		13.8	%		98,353		9.6	%		36.82		45.30		121,000
Portfolio Total / Weighted Average		346		10,473,009		53.8	%	$	335,255		32.9	%	$	33.34	$	38.30	$	385,132

COLOCATION

Year	Number of Leases Expiring (1)		Square Footage of Expiring Leases (2)		Percentage of Net Rentable Square Feet  (2)			Annualized Rent (3)		Percentage of Annualized Rent			Annualized Rent Per Occupied Square Foot		Annualized Rent Per Occupied Square Foot at Expiration		Annualized Rent at Expiration
Available				98,201		0.5	%		—		0.0	%
2013		157		63,103		0.3	%	$	11,169		1.1	%	$	177.00	$	176.28	$	11,124
2014		72		61,360		0.3	%		12,628		1.2	%		205.80		214.47		13,160
2015		37		44,852		0.2	%		8,349		0.8	%		186.15		211.56		9,489
2016		13		23,060		0.1	%		3,866		0.4	%		167.65		225.98		5,211
2017		16		13,184		0.1	%		1,988		0.2	%		150.79		177.72		2,343
2018		1		1,880		0.0	%		349		0.0	%		185.64		214.89		404
2019		6		8,414		0.1	%		675		0.1	%		80.22		107.32		903
2020		1		—		0.0	%		16		0.0	%		—		—		20
2021		1		3,194		0.0	%		276		0.0	%		86.41		113.34		362
2022		—		—		0.0	%		—		0.0	%		—		—		—
Thereafter		1		3,705		0.0	%		168		0.0	%		45.34		209.45		776
Portfolio Total / Weighted Average		305		320,953		1.6	%	$	39,484		3.8	%	$	177.26	$	196.60	$	43,792

NON-TECHNICAL

Year	Number of Leases Expiring (1)		Square Footage of Expiring Leases (2)		Percentage of Net Rentable Square Feet (2)			Annualized Rent (3)		Percentage of Annualized Rent			Annualized Rent Per Occupied Square Foot		Annualized Rent Per Occupied Square Foot at Expiration		Annualized Rent at Expiration
Available				360,814		1.9	%		—		0.0	%
2013		97		331,707		1.7	%	$	7,267		0.7	%	$	21.91	$	21.95	$	7,281
2014		59		280,127		1.4	%		5,174		0.5	%		18.47		19.11		5,352
2015		64		615,373		3.2	%		6,019		0.6	%		9.78		10.06		6,190
2016		54		199,951		1.0	%		3,952		0.4	%		19.76		21.31		4,260
2017		58		707,121		3.6	%		16,820		1.6	%		23.79		24.87		17,589
2018		46		261,421		1.3	%		5,517		0.5	%		21.10		24.20		6,326
2019		40		168,944		0.9	%		3,585		0.4	%		21.22		24.30		4,106
2020		30		271,061		1.4	%		7,010		0.7	%		25.86		27.20		7,373
2021		28		194,325		1.0	%		3,620		0.4	%		18.63		20.99		4,078
2022		26		212,091		1.1	%		2,912		0.3	%		13.73		16.20		3,436
Thereafter		71		532,649		2.7	%		7,614		0.7	%		14.30		16.71		8,900
Portfolio Total / Weighted Average		573		4,135,584		21.2	%	$	69,490		6.8	%	$	18.41	$	19.84	$	74,891

(1) Includes license and similar agreements that upon expiration will be automatically renewed, mostly on a month-to-month basis. Number of leases represents the leased-unit count; a lease could include multiple units.

(2) For some of our properties, we calculate square footage based on factors in addition to contractually leased square feet, including available power, required support space and common area. We estimate the total net rentable square feet available for lease based on a number of factors in addition to contractually leased square feet, including available power, required support space and common area.

(3) Annualized rent represents the monthly contractual base rent (defined as cash base rent before abatements) under existing leases as of December 31, 2012 multiplied by 12.

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DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Summary of Leasing Activity

Leases Signed in the Quarter Ended December 31, 2012

	Number of  Leases (1)		Rentable Square Feet (2)		Expiring Rates (3)		New Rates (3)		Rental Rate Changes			TI’s/Lease Commissions Per Square Foot		Weighted Average Lease Terms (months)
Leasing Activity (4)
Renewals Signed
Turn-Key Flex		4		32,762	$	150.40	$	160.34		6.6	%	$	130.14		80.9
Powered Base Building		2		32,567	$	29.19	$	29.78		2.0	%	$	12.28		70.2
Colocation		21		43,775	$	155.76	$	184.51		18.5	%	$	1.56		33.1
Non-technical		4		8,058	$	25.20	$	25.35		0.6	%	$	0.01		25.5
New Leases Signed
Turn-Key Flex		14		119,968			$	183.00				$	55.71		141.1
Powered Base Building		1		16,247			$	50.52				$	17.21		180.0
Colocation		25		12,446			$	309.49				$	16.55		40.0
Non-technical		10		111,007			$	19.55				$	44.67		136.3
Leasing Activity Summary (4)
Turn-Key Flex		18		152,730		—	$	178.14		—			—
Powered Base Building		3		48,814		—	$	36.68		—			—
Colocation		46		56,221		—	$	212.17
Non-technical		14		119,065		—	$	19.94		—			—

(1) The number of leases represents the leased-unit count; a lease could include multiple units.

(2) For some of our properties, we calculate square footage based on factors in addition to contractually leased square feet, including power, required support space and common area.

(3) Rental rates represent annual estimated cash rent per rentable square foot adjusted for straight line rents in accordance with GAAP rent.

(4) Excludes short term, roof and garage leases.

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DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Summary of Leasing Activity

Leases Commenced in the Quarter Ended December 31, 2012

	Number of  Leases (1)		Rentable Square Feet (2)		Expiring Rates (3)		New Rates (3)		Rental Rate Changes			TI’s/Lease Commissions Per Square Foot		Weighted Average Lease Term (months)
Leasing Activity (4)
Renewals Commenced
Turn-Key Flex		4		32,762	$	150.40	$	160.34		6.6	%	$	130.14		80.9
Powered Base Building		2		32,567	$	29.19	$	29.78		2.0	%	$	12.28		70.2
Colocation		21		33,326	$	162.86	$	196.24		20.5	%	$	1.09		31.5
Non-technical		4		12,991	$	23.33	$	24.26		4.0	%	$	11.96		62.6
New Leases Commenced
Turn-Key Flex		25		247,792			$	179.00				$	44.79		133.0
Powered Base Building		2		8,638			$	37.85				$	15.68		149.6
Custom Solutions (5)		1		64,669			$	39.38				$	4.31		146.1
Colocation		30		16,326			$	241.43				$	29.11		38.3
Non-technical		13		63,221			$	17.44				$	16.36		92.7
Leasing Activity Summary (4)
Turn-Key Flex		29		280,554		—	$	176.82		—			—
Powered Base Building		4		41,205		—	$	31.47		—			—
Custom Solutions (5)		1		64,669		—	$	39.38		—			—
Colocation		51		49,652		—	$	211.10		—			—
Non-technical		17		76,212		—	$	18.60		—			—

(1) The number of leases represents the leased-unit count; a lease could include multiple units.

(2) For some of our properties, we calculate square footage based on factors in addition to contractually leased square feet, including power, required support space and common area.

(3) Rental rates represent annual estimated cash rent per rentable square foot adjusted for straight line rents in accordance with GAAP rent.

(4) Excludes short term, roof and garage leases.

(5) Formerly referred to as Build to Suit.

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DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Historical Capital Expenditures

	Three Months Ended
	12/31/2012		9/30/2012		6/30/2012		3/31/2012		12/31/2011		9/30/2011		6/30/2011		3/31/2011
Recurring capital expenditures (1)	$	14,432,000	$	11,015,000	$	9,229,000	$	6,754,000	$	9,926,000	$	8,000,000	$	7,263,000	$	3,716,000
Non-recurring capital expenditures (2)	$	216,712,000	$	176,141,000	$	187,055,000	$	167,360,000	$	132,159,000	$	176,560,000	$	144,756,000	$	119,971,000
Total net rentable square feet at period end excluding development space (3)		19,488,757		18,922,065		17,881,857		16,923,054		15,908,059		15,262,859		14,967,288		14,628,267

(1) Recurring capital expenditures represent non-incremental building improvements required to maintain current revenues along with leasing commissions. Recurring capital expenditures do not include acquisition capital that was taken into consideration when underwriting the purchase of a building or which are incurred to bring a building up to “operating standard”.

(2) Non-recurring capital expenditures are primarily for development of space and land not including acquisition costs. In addition these expenditures include certain infrequent expenditures for capitalized replacement, repair, maintenance, or other projects which enhance the existing operating portfolio (e.g. electrical and mechanical upgrades including battery replacement, building upgrades).

(3) For some of our properties, we calculate square footage based on factors in addition to contractually leased square feet, including available power, required support space and common area.

Page 28

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Construction Activity Report

As of December 31, 2012

(in square feet unless otherwise noted)

Construction in Progress by Market

	Construction in Progress (“CIP”)
Market	Space Under Development			Land Under Development			Total Construction In Progress			Space Held for Development		Total		Percentage Leased of CIP
Austin		74,962			—			74,962			—		74,962		0.0	%
Boston		14,097			130,315			144,412			86,309		230,721		0.0	%
Chicago		93,320			—			93,320			48,089		141,409		30.3	%
Dallas		—			298,866			298,866			621,907		920,773		18.8	%
Houston		—			124,097			124,097			18,222		142,319		69.9	%
New York Metro		54,346			98,243			152,589			459,691		612,280		44.0	%
Northern Virginia		—			214,000			214,000			49,372		263,372		8.6	%
Philadelphia		—			—			—			62,463		62,463		0.0	%
Phoenix		92,647			—			92,647			59,167		151,814		0.0	%
Sacramento		23,397			—			23,397			—		23,397		0.0	%
San Francisco		—			—			—			33,560		33,560		0.0	%
Silicon Valley		—			—			—			117,867		117,867		0.0	%
St. Louis		49,486			—			49,486			109,930		159,416		0.0	%
London, England		10,648			—			10,648			219,083		229,731		100.0	%
Paris, France		—			—			—			19,351		19,351		0.0	%
Singapore		—			—			—			64,328		64,328		0.0	%
Melbourne, Australia		—			93,582			93,582			—		93,582		0.0	%
Sydney, Australia		—			—			—			45,015		45,015		0.0	%
Grand Total		412,903			959,103			1,372,006			2,014,354		3,386,360
Total US Markets		402,255			865,521			1,267,776			1,666,577		2,934,353
Total Intl Markets		10,648			93,582			104,230			347,777		452,007
Percentage Leased (1)		14.0	%		21.8	%		19.5	%

Construction in Progress by Product Type ⁽²⁾

	US		Europe		Asia/Pacific		Total		% Leased (1)
Turn-Key FlexSM		459,575		—		—		459,575		20.6	%
Powered Base Building®		665,378		—		93,582		758,960		2.5	%
Custom Solutions		142,823		10,648		—		153,471		100.0	%
Total Construction in Progress by Product Type		1,267,776		10,648		93,582		1,372,006		19.5	%

Total Development Activity ⁽³⁾

	US			Europe			Asia/Pacific			Total			% Leased (1)
Total Development as of September 30, 2012		1,885,220			271,959			171,242			2,328,421
New Acquired Space Held for Development		271,000			—			—			271,000
Space Delivered During the Quarter:											—
Turn-Key FlexSM		(105,850	)		(22,000	)		(61,899	)		(189,749	)		25.6	%
Powered Base Building®		—			—			—			—			0.0	%
Custom Solutions		—			—			—			—			0.0	%
Remeasurement Adjustments		18,462			(877	)					17,585
Total Development as of December 31, 2012		2,068,832			249,082			109,343			2,427,257

(1) Represents leases signed.

(2) Based on current estimates.

(3) Includes space under development and space held for development.

Page 29

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Construction Projects in Progress and Total Estimated Direct Cost ⁽¹⁾

For the quarter ended December 31, 2012

(Dollar amounts in thousands except for cost per square foot)

Construction Projects in Progress and Total Estimated Direct Cost	Base Building Improvement to Net Rentable Square Footage		Net Rentable Square Footage		Direct Project Cost - Spent to Date		Direct Project Cost - to Be Spent		Direct Project Total Estimated Cost		Direct Project Cost Per Net Rentable Square Foot
Turn-Key Flex Under Construction as of December 31, 2012 (2)		—		459,575	$	53,220	$	222,900	$	276,120	$	601
Custom Solutions Under Construction as of December 31, 2012 (2)		—		153,471		7,660		77,670		85,330	$	556
Powered Base Building Under Construction as of December 31, 2012 (2)		—		758,960		74,531		93,980		168,511	$	222
Base Building Improvements to Current in Progress Space Under Construction		—		—		65,502		40,102		105,604
Base Building Improvements to Support Future Development (3)		993,659		—		34,688		124,035		158,723
Base Building Improvements to Support Operating Portfolio (3)		1,731,161		—		56,484		40,283		96,767
TOTAL		2,724,820		1,372,006	$	292,085	$	598,970	$	891,055

Notes:

(1) Includes direct project cash disbursements and project accruals; does not include capitalized costs (i.e., interest and general & administrative) or pro-rata acquisition cost.

(2) Represents suite-specific projects based on current estimates.

(3) Cost incurred to develop base buildings for future development and overall condition of portfolio.

Page 30

DIGITAL REALTY TRUST, INC.

Fourth Quarter 2012

Management Statements on Non-GAAP Supplemental Measures

Funds from Operations (FFO):

We calculate funds from operations, or FFO, in accordance with the standards established by the National Association of Real Estate Investment Trusts, or NAREIT. FFO represents net income (loss) (computed in accordance with GAAP), excluding gains (or losses) from sales of property, impairment charges, real estate related depreciation and amortization (excluding amortization of deferred financing costs) and after adjustments for unconsolidated partnerships and joint ventures. Management uses FFO as a supplemental performance measure because, in excluding real estate related depreciation and amortization and gains and losses from property dispositions and after adjustments for unconsolidated partnerships and joint ventures, it provides a performance measure that, when compared year over year, captures trends in occupancy rates, rental rates and operating costs. We also believe that, as a widely recognized measure of the performance of REITs, FFO will be used by investors as a basis to compare our operating performance with that of other REITs. However, because FFO excludes depreciation and amortization and captures neither the changes in the value of our properties that result from use or market conditions, nor the level of capital expenditures and capitalized leasing commissions necessary to maintain the operating performance of our properties, all of which have real economic effect and could materially impact our financial condition and results from operations, the utility of FFO as a measure of our performance is limited. Other REITs may not calculate FFO in accordance with the NAREIT definition and, accordingly, our FFO may not be comparable to such other REITs’ FFO. Accordingly, FFO should be considered only as a supplement to net income computed in accordance with GAAP as a measure of our performance.

Adjusted Funds from Operations (AFFO):

We present adjusted funds from operations, or AFFO, as a supplemental operating measure because, when compared year over year, it assesses our ability to fund dividend and distribution requirements from our operating activities. We also believe that, as a widely recognized measure of the operations of REITs, AFFO will be used by investors as a basis to assess our ability to fund dividend payments in comparison to other REITs, including on a per share and unit basis. We calculate AFFO by adding to or subtracting from FFO (i) non-real estate depreciation, (ii) amortization of deferred financing costs, (iii) amortization of debt discount, (iv) non-cash compensation, (v) loss from early extinguishment of debt, (vi) straight line rents, (vii) fair value of lease revenue amortization, (viii) change in fair value of contingent consideration, (ix) capitalized leasing payroll, (x) recurring tenant improvements, (xi) capitalized leasing commissions and (xii) costs of redeeming our preferred stock. Other REITs may not calculate AFFO in a consistent manner. Accordingly, our AFFO may not be comparable to other REITs’ AFFO. AFFO should be considered only as a supplement to net income computed in accordance with GAAP as a measure of our performance.

EBITDA and Adjusted EBITDA:

We believe that earnings before interest expense, income taxes, depreciation and amortization, or EBITDA, and Adjusted EBITDA (as defined below), are useful supplemental performance measures because they allow investors to view our performance without the impact of non-cash depreciation and amortization or the cost of debt and, with respect to Adjusted EBITDA, preferred dividends and noncontrolling interests. Adjusted EBITDA is EBITDA excluding noncontrolling interests, preferred stock dividends and costs of redeeming our preferred stock. In addition, we believe EBITDA and Adjusted EBITDA are frequently used by securities analysts, investors and other interested parties in the evaluation of REITs. Because EBITDA and Adjusted EBITDA are calculated before recurring cash charges including interest expense and income taxes, exclude capitalized costs, such as leasing commissions, and are not adjusted for capital expenditures or other recurring cash requirements of our business, their utility as a measure of our performance is limited. Other REITs may calculate EBITDA and Adjusted EBITDA differently than we do; accordingly, our EBITDA and Adjusted EBITDA may not be comparable to such other REITs’ EBITDA and Adjusted EBITDA. Accordingly, EBITDA and Adjusted EBITDA should be considered only as supplements to net income computed in accordance with GAAP as a measure of our financial performance.

Net Operating Income (NOI):

Net operating income, or NOI, represents rental revenue and tenant reimbursement revenue less rental property operating and maintenance expenses, property taxes and insurance expenses (as reflected in the statement of operations). NOI is commonly used by stockholders, company management and industry analysts as a measurement of operating performance of the company’s rental portfolio. However, because NOI excludes depreciation and amortization and captures neither the changes in the value of our properties that result from use or market conditions, nor the level of capital expenditures and capitalized leasing commissions necessary to maintain the operating performance of our properties, all of which have real economic effect and could materially impact our results from operations, the utility of NOI as a measure of our performance is limited. Other REITs may not calculate NOI in the same manner we do and, accordingly, our NOI may not be comparable to such other REITs’ NOI. Accordingly, NOI should be considered only as a supplement to net income computed in accordance with GAAP as a measure of our performance.

Page 31