Exhibit

Exhibit 99.2

Supplemental Information Package

and Non-GAAP Reconciliations

First Quarter • March 31, 2020

The pathway to possible.

CrownCastle.com

Crown Castle International Corp.

First Quarter 2020



TABLE OF CONTENTS
	Page
Company Overview
Company Profile	3
Strategy	3
AFFO per Share	5
Tower Portfolio Footprint	5
Corporate Information	6
Research Coverage	7
Historical Common Stock Data	7
Portfolio and Financial Highlights	8
Outlook	9
Financials & Metrics
Condensed Consolidated Balance Sheet	11
Condensed Consolidated Statement of Operations	12
Segment Operating Results	13
FFO and AFFO Reconciliations	13
Condensed Consolidated Statement of Cash Flows	14
Components of Changes in Site Rental Revenues	15
Summary of Straight-Lined and Prepaid Rent Activity	15
Summary of Capital Expenditures	16
Lease Renewal and Lease Distribution	16
Tenant Overview	17
Asset Portfolio Overview
Summary of Tower Portfolio by Vintage	18
Portfolio Overview	19
Ground Interest Overview	21
Ground Interest Activity	21
Capitalization Overview
Capitalization Overview	22
Debt Maturity Overview	23
Liquidity Overview	24
Maintenance and Financial Covenants	25
Interest Rate Sensitivity	26
Appendix	27

Cautionary Language Regarding Forward-Looking Statements

This supplemental information package ("Supplement") contains forward-looking statements and information that are based on our management's current expectations as of the date of this Supplement. Statements that are not historical facts are hereby identified as forward-looking statements. Words such as "Outlook," "guide," "forecast," "estimate," "anticipate," "project," "plan," "intend," "believe," "expect," "likely," "predicted," "positioned," and any variations of these words and similar expressions are intended to identify such forward looking statements. Such statements include plans, projections and estimates regarding (1) demand for data and our communications infrastructure, and benefits derived therefrom, (2) cash flow growth, (3) tenant additions, (4) our Outlook for full year 2020, (5) our strategy, (6) strategic position of our assets, and (7) assumed conversion of preferred stock and the impact therefrom, (8) projected revenues from tenant contracts and (9) projected ground lease expenses from existing ground leases.

Such forward-looking statements are subject to certain risks, uncertainties and assumptions, including, but not limited to, prevailing market conditions. Should one or more of these or other risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those expected. Crown Castle assumes no obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise. More information about potential risk factors which could affect our results is included in our filings with the Securities and Exchange Commission ("SEC"). Our filings with the SEC are available through the SEC website at www.sec.gov or through our investor relations website at investor.crowncastle.com. We use our investor relations website to disclose information about us that may be deemed to be material. We encourage investors, the media and others interested in us to visit our investor relations website from time to time to review up-to-date information or to sign up for e-mail alerts to be notified when new or updated information is posted on the site.

The components of financial information presented herein, both historical and forward looking, may not sum due to rounding. Definitions and reconciliations of non-GAAP financial measures, segment measures and other calculations are provided in the Appendix to this Supplement.

As used herein, the term "including" and any variation thereof, means "including without limitation." The use of the word "or" herein is not exclusive.

Crown Castle International Corp.

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COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



COMPANY PROFILE

Crown Castle International Corp. (to which the terms "Crown Castle," "CCIC," "we," "our," "the Company" or "us" as used herein refer) owns, operates and leases shared communications infrastructure that is geographically dispersed throughout the U.S., including (1) more than 40,000 towers and other structures, such as rooftops (collectively, "towers"), and (2) approximately 80,000 route miles of fiber primarily supporting small cell networks ("small cells") and fiber solutions. We refer to our towers, fiber and small cells assets collectively as "communications infrastructure," and to our customers on our communications infrastructure as "tenants." Our towers have a significant presence in each of the top 100 basic trading areas, and the majority of our small cells and fiber are located in major metropolitan areas, including a presence within every major U.S. market.

Our operating segments consist of (1) Towers and (2) Fiber. Our core business is providing access, including space or capacity, to our shared communications infrastructure via long-term contracts in various forms, including lease, license, sublease and service agreements (collectively, "tenant contracts"). We seek to increase our site rental revenues by adding more tenants on our shared communications infrastructure, which we expect to result in significant incremental cash flows due to our low incremental operating costs.

We operate as a Real Estate Investment Trust ("REIT") for U.S. federal income tax purposes.



STRATEGY

As a leading provider of shared communications infrastructure in the U.S., our strategy is to create long-term stockholder value via a combination of (1) growing cash flows generated from our existing portfolio of communications infrastructure, (2) returning a meaningful portion of our cash generated by operating activities to our common stockholders in the form of dividends and (3) investing capital efficiently to grow cash flows and long-term dividends per share. Our strategy is based, in part, on our belief that the U.S. is the most attractive market for shared communications infrastructure investment with the greatest long-term growth potential. We measure our efforts to create "long-term stockholder value" by the combined payment of dividends to stockholders and growth in our per-share results. The key elements of our strategy are to:

•

Grow cash flows from our existing communications infrastructure. We are focused on maximizing the recurring site rental cash flows generated from providing our tenants with long-term access to our shared infrastructure assets, which we believe is the core driver of value for our stockholders. Tenant additions or modifications of existing tenant equipment (collectively, "tenant additions") enable our tenants to expand coverage and capacity in order to meet increasing demand for data, while generating high incremental returns for our business. We believe our product offerings of towers and small cells provide a comprehensive solution to our wireless tenants' growing network needs through our shared communications infrastructure model, which is an efficient and cost-effective way to serve our tenants. Additionally, we believe our ability to share our fiber assets across multiple tenants to deploy both small cells and offer fiber solutions allows us to generate cash flows and increase stockholder return.

•

Return cash generated by operating activities to common stockholders in the form of dividends. We believe that distributing a meaningful portion of our cash generated by operating activities appropriately provides common stockholders with increased certainty for a portion of expected long-term stockholder value while still allowing us to retain sufficient flexibility to invest in our business and deliver growth. We believe this decision reflects the translation of the high-quality, long-term contractual cash flows of our business into stable capital returns to common stockholders.

•

Invest capital efficiently to grow cash flows and long-term dividends per share. In addition to adding tenants to existing communications infrastructure, we seek to invest our available capital, including the net cash generated by our operating activities and external financing sources, in a manner that will increase long-term stockholder value on a risk-adjusted basis. These investments include constructing and acquiring new communications infrastructure that we expect will generate future cash flow growth and attractive long-term returns by adding tenants to those assets over time. Our historical investments have included the following (in no particular order):


◦	construction of towers, fiber and small cells;


◦	acquisitions of towers, fiber and small cells;


◦	acquisitions of land interests (which primarily relate to land assets under towers);


◦	improvements and structural enhancements to our existing communications infrastructure;


◦	purchases of shares of our common stock from time to time; and


◦	purchases, repayments or redemptions of our debt.

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Our strategy to create long-term stockholder value is based on our belief that there will be considerable future demand for our communications infrastructure based on the location of our assets and the rapid growth in the demand for data. We believe that such demand for our communications infrastructure will continue, will result in growth of our cash flows due to tenant additions on our existing communications infrastructure, and will create other growth opportunities for us, such as demand for newly constructed or acquired communications infrastructure, as described above. Further, we seek to augment the long-term value creation associated with growing our recurring site rental cash flows by offering certain ancillary site development and installation services within our Towers segment.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX

AFFO PER SHARE^(a)(b)



2016^(c)	2017^(c)	2018^(c)	2019	Midpoint of Full Year 2020 Outlook^(d)



TOWER PORTFOLIO FOOTPRINT


(a)	See reconciliations and definitions provided herein.


(b)	Attributable to CCIC common stockholders.


(c)	As restated. See our Annual Report on Form 10-K for the year ended December 31, 2019 for further information.


(d)	Calculated based on midpoint of full year 2020 Outlook issued on April 29, 2020.

Crown Castle International Corp.

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COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



GENERAL COMPANY INFORMATION
Principal executive offices	1220 Augusta Drive, Suite 600, Houston, TX 77057
Common shares trading symbol	CCI
Stock exchange listing	New York Stock Exchange
Fiscal year ending date	December 31
Fitch - Long Term Issuer Default Rating	BBB
Moody’s - Long Term Corporate Family Rating	Baa3
Standard & Poor’s - Long Term Local Issuer Credit Rating	BBB-

Note: These credit ratings may not reflect the potential 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 the ratings. Each agency’s rating should be evaluated independently of any other agency’s rating. An explanation of the significances of the ratings can be obtained from each of the ratings agencies.



EXECUTIVE MANAGEMENT TEAM
Name	Age	Years with Company	Position
Jay A. Brown	47	20	President and Chief Executive Officer
Daniel K. Schlanger	46	4	Executive Vice President and Chief Financial Officer
James D. Young	58	14	Executive Vice President and Chief Operating Officer - Fiber
Robert C. Ackerman	67	21	Executive Vice President and Chief Operating Officer - Towers
Kenneth J. Simon	59	4	Executive Vice President and General Counsel
Michael J. Kavanagh	52	9	Executive Vice President and Chief Commercial Officer
Philip M. Kelley	47	22	Executive Vice President - Corporate Development and Strategy



BOARD OF DIRECTORS
Name	Position	Committees	Age	Years as Director
J. Landis Martin	Chairman	NCG^(a)	74	24
P. Robert Bartolo	Director	Audit, Compensation	48	6
Cindy Christy	Director	Compensation, NCG^(a), Strategy	54	12
Ari Q. Fitzgerald	Director	Compensation, NCG^(a), Strategy	57	17
Robert E. Garrison II	Director	Audit, Compensation	78	14
Andrea J. Goldsmith	Director	NCG^(a), Strategy	55	2
Lee W. Hogan	Director	Audit, Compensation, Strategy	75	19
Edward C. Hutcheson Jr.	Director	Strategy	74	24
Robert F. McKenzie	Director	Audit, Strategy	76	24
Anthony J. Melone	Director	NCG^(a), Strategy	59	4
W. Benjamin Moreland	Director	Strategy	56	13
Jay A. Brown	Director		47	3


(a)	Nominating & Corporate Governance Committee

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RESEARCH COVERAGE
Equity Research
Bank of America David Barden (646) 855-1320	Citigroup Michael Rollins (212) 816-1116	Cowen and Company Colby Synesael (646) 562-1355
Credit Suisse Sami Badri (212) 538-1727	Goldman Sachs Brett Feldman (212) 902-8156	JPMorgan Philip Cusick (212) 622-1444
KeyBanc Brandon Nispel (503) 821-3871	MoffettNathanson Nick Del Deo (212) 519-0025	Morgan Stanley Simon Flannery (212) 761-6432
New Street Research Spencer Kurn (212) 921-2067	Oppenheimer & Co. Timothy Horan (212) 667-8137	Raymond James Ric Prentiss (727) 567-2567
RBC Capital Markets Jonathan Atkin (415) 633-8589	SunTrust Robinson Humphrey Greg Miller (212) 303-4169	UBS Batya Levi (212) 713-8824
Wells Fargo Securities, LLC Jennifer Fritzsche (312) 920-3548
Rating Agency
Fitch John Culver (312) 368-3216	Moody’s Lori Marks (212) 553-1098	Standard & Poor’s Ryan Gilmore (212) 438-0602



HISTORICAL COMMON STOCK DATA
	Three Months Ended
(in millions, except per share amounts)	3/31/20		12/31/19		9/30/19		6/30/19		3/31/19
High price^(a)	$	167.44	$	142.59	$	145.80	$	134.48	$	124.01
Low price^(a)	$	114.18	$	127.67	$	120.75	$	115.79	$	99.81
Period end closing price^(b)	$	144.40	$	141.04	$	136.70	$	127.14	$	123.81
Dividends paid per common share	$	1.20	$	1.20	$	1.13	$	1.13	$	1.13
Volume weighted average price for the period^(a)	$	146.38	$	134.07	$	133.94	$	124.66	$	112.57
Common shares outstanding, at period end	417		416		416		416		416
Market value of outstanding common shares, at period end^(c)	$	60,179	$	58,642	$	56,834	$	52,859	$	51,472


(a)	Based on the sales price, adjusted for common stock dividends, as reported by Bloomberg.


(b)	Based on the period end closing price, adjusted for common stock dividends, as reported by Bloomberg.


(c)	Period end market value of outstanding common shares is calculated as the product of (1) shares of common stock outstanding at period end and (2) closing share price at period end, adjusted for common stock dividends, as reported by Bloomberg.

Crown Castle International Corp.

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COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



SUMMARY PORTFOLIO HIGHLIGHTS
(as of March 31, 2020)
Towers
Number of towers (in thousands)^(a)	40
Average number of tenants per tower	2.1
Remaining contracted tenant receivables ($ in billions)^(b)	$	19
Weighted average remaining tenant contract term (years)^(c)	5
Percent of towers in the Top 50 / 100 Basic Trading Areas	56%/71%
Percent of ground leased / owned ^(d)	60%/40%
Weighted average maturity of ground leases (years)^(d)(e)	36
Fiber
Number of route miles of fiber (in thousands)	80
Remaining contracted tenant receivables ($ in billions)^(b)	$	6
Weighted average remaining tenant contract term (years)^(c)	5



SUMMARY FINANCIAL HIGHLIGHTS
	Three Months Ended March 31,
(dollars in millions, except per share amounts)	2020		2019
(dollars in millions, except per share amounts)			(As Restated)⁽ⁱ⁾
Operating Data:
Net revenues
Site rental	$	1,310	$	1,242
Services and other	111		166
Net revenues	$	1,421	$	1,408

Costs of operations (exclusive of depreciation, amortization and accretion)
Site rental	$	375	$	361
Services and other	99		124
Total cost of operations	$	474	$	485

Net income (loss) attributable to CCIC common stockholders	$	157	$	165
Net income (loss) attributable to CCIC common stockholders per share—diluted^(f)	$	0.38	$	0.40

Non-GAAP Data^(g):
Adjusted EBITDA	$	814	$	804
FFO^(h)	547		550
AFFO^(h)	593		588
AFFO per share^(f)(h)	$	1.42	$	1.41


(a)	Excludes third-party land interests.


(b)	Excludes renewal terms at tenants' option.


(c)	Excludes renewal terms at tenants' option, weighted by site rental revenues exclusive of straight-line revenues and amortization of prepaid rent.


(d)	Weighted by Towers segment site rental gross margin exclusive of straight-line revenues, amortization of prepaid rent, and straight-line expenses.


(e)	Includes all renewal terms at the Company's option.


(f)	Based on diluted weighted-average common shares outstanding of 418 million and 417 million for the three months ended March 31, 2020 and 2019, respectively.


(g)	See reconciliations of Non-GAAP financial measures provided herein. See also "Definitions of Non-GAAP Measures, Segment Measures and Other Calculations" in the Appendix for a discussion of our definitions of Adjusted EBITDA, FFO and AFFO, including per share amounts.


(h)	Attributable to CCIC common stockholders.


(i)	See our Annual Report on Form 10-K for the year ended December 31, 2019 for further information.

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COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



SUMMARY FINANCIAL HIGHLIGHTS (CONTINUED)
	Three Months Ended March 31,
(dollars in millions)	2020			2019
(dollars in millions)				(As Restated)^(a)
Summary Cash Flow Data^(b):
Net cash provided by (used for) operating activities	$	653		$	512
Net cash provided by (used for) investing activities^(c)	(468		)	(489		)
Net cash provided by (used for) financing activities	(50		)	(28		)



(dollars in millions)	March 31, 2020		December 31, 2019
Balance Sheet Data (at period end):
Cash and cash equivalents	$	310	$	196
Property and equipment, net	14,815		14,666
Total assets	38,616		38,457
Total debt and other long-term obligations	18,695		18,121
Total CCIC stockholders' equity	10,121		10,489



	Three Months Ended March 31, 2020
Other Data:
Net debt to last quarter annualized Adjusted EBITDA^(d)	5.6		x
Dividend per common share	$	1.20



OUTLOOK FOR FULL YEAR 2020
(dollars in millions, except per share amounts)	Full Year 2020
Site rental revenues	$5,337	to	$5,382
Site rental cost of operations^(e)	$1,482	to	$1,527
Net income (loss)	$998	to	$1,078
Net income (loss) attributable to CCIC common stockholders	$941	to	$1,021
Net income (loss) per share—diluted^(f)(g)(j)	$2.22	to	$2.41
Adjusted EBITDA^(h)	$3,479	to	$3,524
Interest expense and amortization of deferred financing costs⁽ⁱ⁾	$691	to	$736
FFO^(h)(j)	$2,449	to	$2,494
AFFO^(h)(j)	$2,572	to	$2,617
AFFO per share^(f)(h)(j)	$6.06	to	$6.17


(a)	See our Annual Report on Form 10-K for the year ended December 31, 2019 for further information.


(b)	Includes impacts of restricted cash. See the condensed consolidated statement of cash flows for further information.


(c)	Includes net cash used for acquisitions of approximately $13 million and $10 million for the three months ended March 31, 2020 and 2019, respectively.


(d)	See the "Net debt to Last Quarter Annualized Adjusted EBITDA calculation" in the Appendix.


(e)	Exclusive of depreciation, amortization and accretion.

(f)

The assumption for diluted weighted-average common shares outstanding for full year 2020 Outlook is based on the diluted common shares outstanding as of March 31, 2020 and is inclusive of the assumed conversion of preferred stock in August 2020, which we expect to result in (1) an increase in the diluted weighted-average common shares outstanding by approximately 6 million shares and (2) a reduction in the amount of annual preferred stock dividends paid by approximately $28 million when compared to full year 2019 actual results.


(g)	Calculated using net income (loss) attributable to CCIC common stockholders.


(h)	See reconciliation of this non-GAAP financial measure to net income (loss) and definition included herein.


(i)	See the reconciliation of "Components of Current Outlook for Interest Expense and Amortization of Deferred Financing Costs" in the Appendix.


(j)	Attributable to CCIC common stockholders.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



FULL YEAR 2019 ACTUAL AND OUTLOOK FOR FULL YEAR 2020 COMPONENTS OF CHANGES IN SITE RENTAL REVENUES
(dollars in millions)	Full Year 2019 Actual	Full Year 2020 Outlook^(a)
Components of changes in site rental revenues^(b):
Prior year site rental revenues exclusive of straight-lined revenues associated with fixed escalators^(c)(d)	$4,724	$5,012

New leasing activity^(c)(d)	383	395-425
Escalators	86	90-100
Non-renewals	(181)	(195)-(175)
Organic Contribution to Site Rental Revenues^(e)	288	295-335
Contribution from full year straight-lined revenues associated with fixed escalators	81	33-53
Acquisitions^(f)	—	—
Other	—	—
Total GAAP site rental revenues	$5,093	$5,337-$5,382

Year-over-year changes in revenues:
Reported GAAP site rental revenues^(g)		5.1%
Organic Contribution to Site Rental Revenues^(e)(g)(h)		6.3%


(a)	As issued on April 29, 2020.


(b)	See additional information regarding Crown Castle's site rental revenues, including projected revenues from tenant licenses, straight-lined revenues and prepaid rent herein.


(c)	Includes revenues from amortization of prepaid rent in accordance with GAAP.


(d)	Includes revenues from the construction of new small cell nodes, exclusive of straight-lined revenues related to fixed escalators.


(e)	See "Definitions of Non-GAAP Measures, Segment Measures and Other Calculations" in the Appendix for a discussion of our definition of Organic Contribution to Site Rental Revenues.


(f)	Represents the contribution from recent acquisitions. The financial impact of recent acquisitions is excluded from Organic Contribution to Site Rental Revenues until the one-year anniversary of the acquisition.


(g)	Calculated based on midpoint of full year 2020 Outlook issued on April 29, 2020.


(h)	Calculated as the percentage change from prior year site rental revenues, exclusive of straight-lined revenues associated with fixed escalations, compared to Organic Contribution to Site Rental Revenues for the current period.

Crown Castle International Corp.

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CONDENSED CONSOLIDATED BALANCE SHEET (Unaudited)
(amounts in millions, except par values)	March 31, 2020			December 31, 2019
ASSETS
Current assets:
Cash and cash equivalents	$	310		$	196
Restricted cash	157			137
Receivables, net	495			596
Prepaid expenses	107			107
Other current assets	178			168
Total current assets	1,247			1,204
Deferred site rental receivables	1,428			1,424
Property and equipment, net	14,815			14,666
Operating lease right-of-use assets	6,198			6,133
Goodwill	10,078			10,078
Other intangible assets, net	4,734			4,836
Other assets, net	116			116
Total assets	$	38,616		$	38,457

LIABILITIES AND EQUITY
Current liabilities:
Accounts payable	$	296		$	334
Accrued interest	119			169
Deferred revenues	741			657
Other accrued liabilities	264			361
Current maturities of debt and other obligations	949			100
Current portion of operating lease liabilities	300			299
Total current liabilities	2,669			1,920
Debt and other long-term obligations	17,746			18,021
Operating lease liabilities	5,567			5,511
Other long-term liabilities	2,513			2,516
Total liabilities	28,495			27,968
Commitments and contingencies
CCIC stockholders' equity:
Common stock, $0.01 par value; 600 shares authorized; shares issued and outstanding: March 31, 2020—417 and December 31, 2019—416	4			4
6.875% Mandatory Convertible Preferred Stock, Series A, $0.01 par value; 20 shares authorized; shares issued and outstanding: March 31, 2020—2 and December 31, 2019—2; aggregate liquidation value: March 31, 2020—$1,650 and December 31, 2019—$1,650	—			—
Additional paid-in capital	17,835			17,855
Accumulated other comprehensive income (loss)	(6		)	(5		)
Dividends/distributions in excess of earnings	(7,712		)	(7,365		)
Total equity	10,121			10,489
Total liabilities and equity	$	38,616		$	38,457

Crown Castle International Corp.

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CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited)
	Three Months Ended March 31,
(amounts in millions, except per share amounts)	2020			2019
				(As Restated)^(a)
Net revenues:
Site rental	$	1,310		$	1,242
Services and other	111			166
Net revenues	1,421			1,408
Operating expenses:
Costs of operations (exclusive of depreciation, amortization and accretion):
Site rental	375			361
Services and other	99			124
Selling, general and administrative	175			152
Asset write-down charges	4			6
Acquisition and integration costs	5			4
Depreciation, amortization and accretion	399			394
Total operating expenses	1,057			1,041
Operating income (loss)	364			367
Interest expense and amortization of deferred financing costs	(175		)	(168		)
Gains (losses) on retirement of long-term obligations	—			(1		)
Interest income	1			2
Other income (expense)	—			(1		)
Income (loss) before income taxes	190			199
Benefit (provision) for income taxes	(5		)	(6		)
Net income (loss)	185			193
Dividends/distributions on preferred stock	(28		)	(28		)
Net income (loss) attributable to CCIC common stockholders	$	157		$	165

Net income (loss) attributable to CCIC common stockholders, per common share:
Net income (loss) attributable to CCIC common stockholders, basic	$	0.38		$	0.40
Net income (loss) attributable to CCIC common stockholders, diluted	$	0.38		$	0.40

Weighted-average common shares outstanding:
Basic	416			415
Diluted	418			417


(a)	See our Annual Report on Form 10-K for the year ended December 31, 2019 for further information.

Crown Castle International Corp.

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COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



SEGMENT OPERATING RESULTS
	Three Months Ended March 31, 2020								Three Months Ended March 31, 2019
									(As Restated)^(e)
(dollars in millions)	Towers		Fiber		Other		Consolidated Total		Towers		Fiber		Other		Consolidated Total
Segment site rental revenues	$	867	$	443			$	1,310	$	828	$	414			$	1,242
Segment services and other revenues	108		3				111		162		4				166
Segment revenues	975		446				1,421		990		418				1,408
Segment site rental cost of operations	214		152				366		211		140				351
Segment services and other cost of operations	95		2				97		120		3				123
Segment cost of operations^(a)(b)	309		154				463		331		143				474
Segment site rental gross margin^(c)	653		291				944		617		274				891
Segment services and other gross margin^(c)	13		1				14		42		1				43
Segment selling, general and administrative expenses^(b)	24		51				75		26		48				74
Segment operating profit^(c)	642		241				883		633		227				860
Other selling, general and administrative expenses^(b)					$	70	70						$	55	55
Stock-based compensation expense					36		36						29		29
Depreciation, amortization and accretion					399		399						394		394
Interest expense and amortization of deferred financing costs					175		175						168		168
Other (income) expenses to reconcile to income (loss) before income taxes^(d)					13		13						15		15
Income (loss) before income taxes							$	190							$	199


(a)	Exclusive of depreciation, amortization and accretion shown separately.

(b)

Segment cost of operations excludes (1) stock-based compensation expense of $6 million for both the three months ended March 31, 2020 and 2019 and (2) prepaid lease purchase price adjustments of $5 million for both the three months ended March 31, 2020 and 2019. Selling, general and administrative expenses exclude stock-based compensation expense of $30 million and $23 million for the three months ended March 31, 2020 and 2019, respectively.


(c)	See "Non-GAAP Financial Measures, Segment Measures and Other Calculations" herein for a discussion of our definitions of segment site rental gross margin, segment services and other gross margin and segment operating profit.


(d)	See condensed consolidated statement of operations for further information.


(e)	See our Annual Report on Form 10-K for the year ended December 31, 2019 for further information.



FFO AND AFFO RECONCILIATIONS
	Three Months Ended March 31,
(amounts in millions, except per share amounts)	2020			2019
(amounts in millions, except per share amounts)				(As Restated)^(f)
Net income (loss)	$	185		$	193
Real estate related depreciation, amortization and accretion	386			380
Asset write-down charges	4			6
Dividends/distributions on preferred stock	(28		)	(28		)
FFO^(a)(b)(c)(d)	$	547		$	550
Weighted-average common shares outstanding—diluted^(e)	418			417
FFO per share^{(a)(b)(c)(d)(e)}	$	1.31		$	1.32

FFO (from above)	$	547		$	550
Adjustments to increase (decrease) FFO:
Straight-lined revenue	(14		)	(17		)
Straight-lined expense	20			22
Stock-based compensation expense	36			29
Non-cash portion of tax provision	4			5
Non-real estate related depreciation, amortization and accretion	13			14
Amortization of non-cash interest expense	1			1
Other (income) expense	—			1
(Gains) losses on retirement of long-term obligations	—			1
Acquisition and integration costs	5			4
Sustaining capital expenditures	(21		)	(21		)
AFFO^(a)(b)(c)(d)	$	593		$	588
Weighted-average common shares outstanding—diluted^(e)	418			417
AFFO per share^{(a)(b)(c)(d)(e)}	$	1.42		$	1.41


(a)	See "Non-GAAP Financial Measures, Segment Measures and Other Calculations" herein for a discussion of our definitions of FFO, including per share amounts, and AFFO, including per share amounts.


(b)	FFO and AFFO are reduced by cash paid for preferred stock dividends during the period in which they are paid.


(c)	Attributable to CCIC common stockholders.


(d)	The above reconciliation excludes line items included in our definition which are not applicable for the periods shown.


(e)	For all periods presented, the diluted weighted-average common shares outstanding does not include any assumed conversion of preferred stock in the share count.


(f)	See our Annual Report on Form 10-K for the year ended December 31, 2019 for further information.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (Unaudited)
	Three Months Ended March 31,
(dollars in millions)	2020			2019
				(As Restated)^(a)
Cash flows from operating activities:
Net income (loss)	$	185		$	193
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Depreciation, amortization and accretion	399			394
(Gains) losses on retirement of long-term obligations	—			1
Amortization of deferred financing costs and other non-cash interest	1			1
Stock-based compensation expense	37			29
Asset write-down charges	4			6
Deferred income tax (benefit) provision	1			1
Other non-cash adjustments, net	—			2
Changes in assets and liabilities, excluding the effects of acquisitions:
Increase (decrease) in liabilities	(68		)	(53		)
Decrease (increase) in assets	94			(62		)
Net cash provided by (used for) operating activities	653			512
Cash flows from investing activities:
Capital expenditures	(447		)	(480		)
Payments for acquisitions, net of cash acquired	(13		)	(10		)
Other investing activities, net	(8		)	1
Net cash provided by (used for) investing activities	(468		)	(489		)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	—			996
Principal payments on debt and other long-term obligations	(26		)	(25		)
Purchases and redemptions of long-term debt	—			(12		)
Borrowings under revolving credit facility	1,340			710
Payments under revolving credit facility	(595		)	(1,140		)
Net borrowings (repayments) under commercial paper program	(155		)	—
Payments for financing costs	—			(10		)
Purchases of common stock	(73		)	(42		)
Dividends/distributions paid on common stock	(513		)	(477		)
Dividends/distributions paid on preferred stock	(28		)	(28		)
Net cash provided by (used for) financing activities	(50		)	(28		)
Net increase (decrease) in cash, cash equivalents, and restricted cash	135			(5		)
Effect of exchange rate changes on cash	(1		)	—
Cash, cash equivalents, and restricted cash at beginning of period	338			413
Cash, cash equivalents, and restricted cash at end of period	$	472		$	408
Supplemental disclosure of cash flow information:
Interest paid	223			208
Income taxes paid	1			—


(a)	See our Annual Report on Form 10-K for the year ended December 31, 2019 for further information.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



COMPONENTS OF CHANGES IN SITE RENTAL REVENUES
	Three Months Ended March 31,
(dollars in millions)	2020			2019
				(As Restated)^(g)
Components of changes in site rental revenues^(a):
Prior year site rental revenues exclusive of straight-lined revenues associated with fixed escalators^(b)(c)	$	1,225		$	1,156

New leasing activity^(b)(c)	99			92
Escalators	22			21
Non-renewals	(51		)	(43		)
Organic Contribution to Site Rental Revenues^(d)	71			70
Contribution from straight-lined revenues associated with fixed escalators	14			17
Acquisitions^(e)	—			—
Other	—			—
Total GAAP site rental revenues	$	1,310		$	1,242

Year-over-year changes in revenue:
Reported GAAP site rental revenues	5.5		%
Organic Contribution to Site Rental Revenues^(d)(f)	5.8		%



SUMMARY OF SITE RENTAL STRAIGHT-LINED REVENUES AND EXPENSES ASSOCIATED WITH FIXED ESCALATORS^(h)
	Three Months Ended March 31,
	2020						2019
(dollars in millions)	Towers		Fiber		Total		Towers		Fiber		Total
Site rental straight-lined revenues	$	13	$	1	$	14	$	17	$	—	$	17
Site rental straight-lined expenses	20		—		20		21		1		22



SUMMARY OF PREPAID RENT ACTIVITY⁽ⁱ⁾
	Three Months Ended March 31,
	2020						2019
							(As Restated)^(g)
(dollars in millions)	Towers		Fiber		Total		Towers		Fiber		Total
Prepaid rent additions	$	64	$	71	$	135	$	81	$	61	$	142
Amortization of prepaid rent	73		53		126		58		50		108


(a)	See additional information herein regarding Crown Castle's site rental revenues, including projected revenue from tenant licenses, straight-lined revenues and prepaid rent.


(b)	Includes revenues from amortization of prepaid rent in accordance with GAAP.


(c)	Includes revenues from the construction of new small cell nodes, exclusive of straight-lined revenues related to fixed escalators.


(d)	See "Definitions of Non-GAAP Measures, Segment Measures and Other Calculations" in the Appendix for a discussion of our definition of Organic Contribution to Site Rental Revenues.


(e)	Represents the initial contribution of recent acquisitions. The financial impact of recent acquisitions is excluded from Organic Contribution to Site Rental Revenues until the one-year anniversary of the acquisition.


(f)	Calculated as the percentage change from prior year site rental revenues, exclusive of straight-lined revenues associated with fixed escalations, compared to Organic Contribution to Site Rental Revenues for the current period.


(g)	See our Annual Report on Form 10-K for the year ended December 31, 2019 for further information.


(h)	In accordance with GAAP accounting, if payment terms call for fixed escalations or rent free periods, the revenue is recognized on a straight-line basis over the fixed, non-cancelable term of the contract. Since the Company recognizes revenue on a straight-line basis, a portion of the site rental revenue in a given period represents cash collected or contractually collectible in other periods.


(i)	Reflects up-front consideration from long-term tenants and other deferred credits (commonly referred to as prepaid rent), and the amortization thereof for GAAP revenue recognition purposes.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



SUMMARY OF CAPITAL EXPENDITURES
	Three Months Ended March 31,
	2020								2019
(dollars in millions)	Towers		Fiber		Other		Total		Towers		Fiber		Other		Total
Discretionary:
Purchases of land interests	$	13	$	—	$	—	$	13	$	15	$	—	$	—	$	15
Communications infrastructure construction and improvements	87		319		7		413		98		344		—		442
Sustaining	5		9		7		21		6		11		4		21
Integration	—		—		—		—		—		—		2		2
Total	$	105	$	328	$	14	$	447	$	119	$	355	$	6	$	480



PROJECTED REVENUES FROM TENANT CONTRACTS^(a)
	Remaining Nine Months		Years Ending December 31,
(as of March 31, 2020; dollars in millions)	2020		2021			2022			2023			2024
Components of site rental revenues:
Site rental revenues exclusive of straight-line associated with fixed escalators	$	3,908	$	5,322		$	5,417		$	5,468		$	5,478
Straight-lined site rental revenues associated with fixed escalators	—		(96		)	(176		)	(181		)	(150		)
GAAP site rental revenues	$	3,908	$	5,226		$	5,241		$	5,287		$	5,328



PROJECTED GROUND LEASE EXPENSES FROM EXISTING GROUND LEASES^(b)
	Remaining Nine Months		Years Ending December 31,
(as of March 31, 2020; dollars in millions)	2020		2021		2022		2023		2024
Components of ground lease expenses:
Ground lease expenses exclusive of straight-line associated with fixed escalators	$	648	$	882	$	902	$	921	$	940
Straight-lined site rental ground lease expenses associated with fixed escalators	56		63		50		39		29
GAAP ground lease expenses	$	704	$	945	$	952	$	960	$	969


(a)	Based on tenant licenses as of March 31, 2020. All tenant licenses are assumed to renew for a new term no later than the respective current term end date, and as such, projected revenue does not reflect the impact of estimated annual churn. CPI-linked tenant contracts are assumed to escalate at 3% per annum.


(b)	Based on existing ground leases as of March 31, 2020. CPI-linked leases are assumed to escalate at 3% per annum.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



ANNUALIZED RENTAL CASH PAYMENTS AT TIME OF RENEWAL^(a)
	Remaining Nine Months		Years Ending December 31,
(as of March 31, 2020; dollars in millions)	2020		2021		2022		2023		2024
AT&T	$	19	$	35	$	30	$	353	$	27
Sprint	12		30		35		211		24
T-Mobile	11		21		356		52		55
Verizon	35		40		46		49		508
All Others Combined	149		184		160		123		77
Total	$	226	$	310	$	627	$	788	$	691



TENANT OVERVIEW
(as of March 31, 2020)	Percentage of Q1 2020 LQASite Rental Revenues	Weighted Average Current Term Remaining^(b)	Long-Term Credit Rating (S&P / Moody’s)
AT&T	22%	6	BBB / Baa2
T-Mobile	21%	6	BB / Ba2
Verizon	18%	5	BBB+ / Baa1
Sprint	14%	6	BB
All Others Combined	25%	3	N/A
Total / Weighted Average	100%	5


(a)	Reflects lease renewals by year by tenant; dollar amounts represent annualized cash site rental revenues from assumed renewals or extension as reflected in the table "Projected Revenues from Tenant Contracts."


(b)	Weighted by site rental revenue contributions; excludes renewals at the tenants' option.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



SUMMARY OF TOWER PORTFOLIO BY VINTAGE
(as of March 31, 2020; dollars in thousands)
CASH YIELD^(a)	NUMBER OF TENANTS PER TOWER



LQA CASH SITE RENTAL REVENUE PER TOWER^(b)	LQA TOWERS SEGMENT SITE RENTAL GROSS CASH MARGIN PER TOWER^(c)



NET INVESTED CAPITAL PER TOWER^(d)	NUMBER OF TOWERS


(a)	Yield is calculated as LQA Towers segment site rental gross margin, exclusive of straight-line revenues and amortization of prepaid rent, divided by invested capital.


(b)	Exclusive of straight-line revenues and amortization of prepaid rent.


(c)	Exclusive of straight-line revenues, amortization of prepaid rent, and straight-line expenses.


(d)	Reflects gross total assets (including incremental capital invested by the Company since time of acquisition or construction completion), less any prepaid rent. Inclusive of invested capital related to land at the tower site.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



PORTFOLIO OVERVIEW^(a)
(as of March 31, 2020; dollars in thousands)
NUMBER OF TOWERS	TENANTS PER TOWER	LQA CASH SITE RENTAL REVENUE PER TOWER^(b)


(a)	Excludes small cells, fiber and third-party land interests.


(b)	Exclusive of straight-line revenues and amortization of prepaid rent.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



DISTRIBUTION OF TOWER TENANCY (as of March 31, 2020)^(a)
PERCENTAGE OF TOWERS BY TENANTS PER TOWER
SITES ACQUIRED AND BUILT 2006 AND PRIOR			SITES ACQUIRED AND BUILT 2007 TO PRESENT



Average: 2.6	Average: 2.0

GEOGRAPHIC TOWER DISTRIBUTION (as of March 31, 2020)^(a)
PERCENTAGE OF TOWERS BY GEOGRAPHIC LOCATION	PERCENTAGE OF LQA CASH SITE RENTAL REVENUE BY GEOGRAPHIC LOCATION^(b)


(a)	Excludes small cells, fiber and third-party land interests.


(b)	Exclusive of straight-line revenues and amortization of prepaid rent.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



GROUND INTEREST OVERVIEW
(as of March 31, 2020; dollars in millions)	LQA Cash Site Rental Revenues^(a)		Percentage of LQA Cash Site Rental Revenues^(a)		LQA Towers Segment Site Rental Gross Cash Margin^(b)		Percentage of LQA Towers Segment Site Rental Gross Cash Margin^(b)		Number of Towers^(c)	Percentage of Towers		Weighted Average Term Remaining (by years)^(d)
Less than 10 years	$	320	10	%	$	169	7	%	4,960	12	%
10 to 20 years	420		14	%	245		11	%	6,404	16	%
Greater than 20 years	1,350		44	%	968		42	%	17,847	45	%
Total leased	$	2,090	68	%	$	1,382	60	%	29,211	73	%	36

Owned	$	989	32	%	$	939	40	%	10,871	27	%
Total / Average	$	3,079	100	%	$	2,321	100	%	40,082	100	%



GROUND INTEREST ACTIVITY
(dollars in millions)	Three Months Ended March 31, 2020
Ground Extensions Under Crown Castle Towers:
Number of ground leases extended	225
Average number of years extended	34
Percentage increase in consolidated cash ground lease expense due to extension activities^(e)	0.2		%

Ground Purchases Under Crown Castle Towers:
Number of ground leases purchased	44
Ground lease purchases (including capital expenditures, acquisitions and installment purchases)	$	17
Percentage of Towers segment site rental gross margin from towers residing on land purchased	<1%


(a)	Exclusive of straight-line revenues and amortization of prepaid rent.


(b)	Exclusive of straight-line revenues, amortization of prepaid rent, and straight-line expenses.


(c)	Excludes small cells, fiber and third-party land interests.


(d)	Includes all renewal terms at the Company's option; weighted by Towers segment cash site rental gross margin.


(e)	Includes the impact from the amortization of lump sum payments.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



CAPITALIZATION OVERVIEW^(a)
(As of March 31, 2020; dollars in millions)	Face Value		Fixed vs. Variable	Interest Rate^(b)	Net Debt to LQA EBITDA^(c)	Maturity
Cash, cash equivalents and restricted cash	$	472

3.849% Secured Notes	1,000		Fixed	3.9%		2023
Senior Secured Notes, Series 2009-1, Class A-2	66		Fixed	9.0%		2029
Senior Secured Tower Revenue Notes, Series 2015-1^(d)	300		Fixed	3.2%		2042^(d)
Senior Secured Tower Revenue Notes, Series 2018-1^(d)	250		Fixed	3.7%		2043^(d)
Senior Secured Tower Revenue Notes, Series 2015-2^(d)	700		Fixed	3.7%		2045^(d)
Senior Secured Tower Revenue Notes, Series 2018-2^(d)	750		Fixed	4.2%		2048^(d)
Finance leases & other obligations	221		Various	Various		Various
Total secured debt	$	3,287		4.0%	1.0x
2016 Revolver^(e)	1,270		Variable	2.1%		2024
2016 Term Loan A	2,297		Variable	2.1%		2024
Commercial Paper Notes^(f)	—		Variable	N/A		N/A
3.400% Senior Notes	850		Fixed	3.4%		2021
2.250% Senior Notes	700		Fixed	2.3%		2021
4.875% Senior Notes	850		Fixed	4.9%		2022
5.250% Senior Notes	1,650		Fixed	5.3%		2023
3.150% Senior Notes	750		Fixed	3.2%		2023
3.200% Senior Notes	750		Fixed	3.2%		2024
4.450% Senior Notes	900		Fixed	4.5%		2026
3.700% Senior Notes	750		Fixed	3.7%		2026
4.000% Senior Notes	500		Fixed	4.0%		2027
3.650% Senior Notes	1,000		Fixed	3.7%		2027
3.800% Senior Notes	1,000		Fixed	3.8%		2028
4.300% Senior Notes	600		Fixed	4.3%		2029
3.100% Senior Notes	550		Fixed	3.1%		2029
4.750% Senior Notes	350		Fixed	4.8%		2047
5.200% Senior Notes	400		Fixed	5.2%		2049
4.000% Senior Notes	350		Fixed	4.0%		2049
Total unsecured debt	$	15,517		3.6%	4.8x
Total net debt	$	18,332		3.6%	5.6x
Preferred Stock, at liquidation value	1,650
Market Capitalization^(g)	60,179
Firm Value^(h)	$	80,161


(a)	The capitalization overview does not reflect the Company's April 2020 issuance of senior notes and the associated use of proceeds, including the repayment of outstanding balances under the 2016 Revolver.


(b)	Represents the weighted-average stated interest rate, as applicable.


(c)	Represents the applicable amount of debt divided by LQA consolidated Adjusted EBITDA. See the "Net debt to Last Quarter Annualized Adjusted EBITDA calculation" in the Appendix.

(d)

If the respective series of such debt is not paid in full on or prior to an applicable date, then the Excess Cash Flow (as defined in the indenture) of the issuers of such notes will be used to repay principal of the applicable series, and additional interest (of an additional approximately 5% per annum) will accrue on the respective series. The Senior Secured Tower Revenue Notes, Series 2015-1 and 2015-2 have anticipated repayment dates in 2022 and 2025, respectively. The Senior Secured Tower Revenue Notes, 2018-1 and 2018-2 have anticipated repayment dates in 2023 and 2028, respectively. Notes are prepayable at par if voluntarily repaid six months or less prior to maturity; earlier prepayment may require additional consideration.


(e)	As of March 31, 2020, the undrawn availability under the $5.0 billion 2016 Revolver was $3.7 billion.


(f)	As of March 31, 2020, there were no outstanding notes under the $1.0 billion unsecured commercial paper program ("CP Program"). The maturities of commercial paper notes under the CP Program, when outstanding, may vary but may not exceed 397 days from the date of issue.


(g)	Market capitalization calculated based on $144.40 closing price and 417 million shares outstanding as of March 31, 2020.


(h)	Represents the sum of net debt, preferred stock (at liquidation value) and market capitalization.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX

DEBT MATURITY OVERVIEW^(a)(b)

(as of March 31, 2020; dollars in millions)


(a)	Where applicable, maturities reflect the Anticipated Repayment Date as defined in the respective debt agreement; excludes finance leases and other obligations; amounts presented at face value, net of repurchases held at CCIC.


(b)	The debt maturity overview does not reflect the Company's April 2020 issuance of senior notes and the associated use of proceeds, including the repayment of outstanding balances under the 2016 Revolver.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



LIQUIDITY OVERVIEW^(a)
(dollars in millions)	March 31, 2020
Cash and cash equivalents^(b)	$	310
Undrawn 2016 Revolver availability^(c)(d)	3,710
Restricted cash^(e)	162
Debt and other long-term obligations^(d)	18,695
Total equity	10,121


(a)	In addition, we have the following sources of liquidity:


i.	In April 2018, we established an at-the-market stock offering program ("ATM Program") through which we may, from time to time, issue and sell shares of our common stock having an aggregate gross sales price of up to $750 million to or through sales agents. No shares of common stock have been sold under the ATM Program.

ii.

In April 2019, we established a CP Program through which we may issue short term, unsecured commercial paper notes ("CP Notes"). Amounts available under the CP Program may be issued, repaid and re-issued from time to time, with the aggregate principal amount of CP Notes outstanding under the CP Program at any time not to exceed $1.0 billion. As of March 31, 2020, there were no CP Notes outstanding under our CP Program. We intend to maintain available commitments under our 2016 Revolver in an amount at least equal to the amount of CP Notes outstanding at any point in time.


(b)	Exclusive of restricted cash.


(c)	Availability at any point in time is subject to reaffirmation of the representations and warranties in, and there being no default under, the credit agreement governing our 2016 Revolver.


(d)	Does not reflect the Company's April 2020 issuance of senior notes and the associated use of proceeds, including the repayment of outstanding balances under the 2016 Revolver.


(e)	Inclusive of $5 million included within "long-term prepaid rent and other assets, net" on our condensed consolidated balance sheet.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



SUMMARY OF MAINTENANCE AND FINANCIAL COVENANTS^(a)
Debt	Borrower / Issuer	Covenant^(b)	Covenant Level Requirement		As of March 31, 2020
Maintenance Financial Covenants^(c)
2016 Credit Facility	CCIC	Total Net Leverage Ratio	≤ 6.50x		5.6x
2016 Credit Facility	CCIC	Total Senior Secured Leverage Ratio	≤ 3.50x		0.9x
2016 Credit Facility	CCIC	Consolidated Interest Coverage Ratio^(d)	N/A		N/A

Restrictive Negative Financial Covenants
Financial covenants restricting ability to incur additional debt
2012 Secured Notes	CC Holdings GS V LLC and Crown Castle GS III Corp.	Debt to Adjusted Consolidated Cash Flow Ratio	≤ 3.50x		2.3x

Financial covenants requiring excess cash flows to be deposited in a cash trap reserve account and not released
2015 Tower Revenue Notes	Crown Castle Towers LLC and its Subsidiaries	Debt Service Coverage Ratio	> 1.75x	^(e)	10.9x
2018 Tower Revenue Notes	Crown Castle Towers LLC and its Subsidiaries	Debt Service Coverage Ratio	> 1.75x	^(e)	10.9x
2009 Securitized Notes	Pinnacle Towers Acquisition Holdings LLC and its Subsidiaries	Debt Service Coverage Ratio	> 1.30x	^(e)	11.8x

Financial covenants restricting ability of relevant issuer to issue additional notes under the applicable indenture
2015 Tower Revenue Notes	Crown Castle Towers LLC and its Subsidiaries	Debt Service Coverage Ratio	≥ 2.00x	^(f)	10.9x
2018 Tower Revenue Notes	Crown Castle Towers LLC and its Subsidiaries	Debt Service Coverage Ratio	≥ 2.00x	^(f)	10.9x
2009 Securitized Notes	Pinnacle Towers Acquisition Holdings LLC and its Subsidiaries	Debt Service Coverage Ratio	≥ 2.34x	⁽⁾	11.8x


(a)	Summary does not reflect the Company's April 2020 issuance of senior notes and the associated use of proceeds, including the repayment of outstanding balances under the 2016 Revolver.


(b)	As defined in the respective debt agreement. In the indentures for the 2015 Tower Revenue Notes, 2018 Tower Revenue Notes and the 2009 Securitized Notes, the defined term for Debt Service Coverage Ratio is "DSCR."


(c)	Failure to comply with the financial maintenance covenants would, absent a waiver, result in an event of default under the credit agreement governing our 2016 Credit Facility.


(d)	Applicable solely to the extent that the senior unsecured debt rating by any two of S&P, Moody's and Fitch is lower than BBB-, Baa3 or BBB-, respectively. If applicable, the consolidated interest coverage ratio must be greater than or equal to 2.50.

(e)

The 2015 Tower Revenue Notes, 2018 Tower Revenue Notes and 2009 Securitized Notes also include the potential for amortization events, which could result in applying current and future cash flow to the prepayment of debt with applicable prepayment consideration. An amortization event occurs when the Debt Service Coverage Ratio falls below 1.45x, 1.45x or 1.15x, in each case as described under the indentures for the 2015 Tower Revenue Notes, 2018 Tower Revenue Notes or 2009 Securitized Notes, respectively.


(f)	Rating Agency Confirmation (as defined in the respective debt agreement) is also required.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX



INTEREST RATE SENSITIVITY^(a)(b)
	Remaining Nine Months		Years Ending December 31,
(as of March 31, 2020; dollars in millions)	2020		2021		2022
Fixed Rate Debt:
Face Value of Principal Outstanding^(c)	$	15,010	$	15,002	$	14,995
Current Interest Payment Obligations^(d)	448		597		596
Effect of 0.125% Change in Interest Rates^(e)	—		—		—
Floating Rate Debt:
Face Value of Principal Outstanding^(c)	$	3,523	$	3,435	$	3,318
Current Interest Payment Obligations^(f)	36		48		48
Effect of 0.125% Change in Interest Rates^(g)	3		4		4


(a)	Excludes finance leases and other obligations and does not reflect the Company's April 2020 issuance of senior notes and the associated use of proceeds, including the repayment of outstanding balances under the 2016 Revolver.


(b)	Excludes the commitment fee the Company pays on the undrawn available amount under the 2016 Revolver. The commitment fee ranges from 0.125% to 0.350%, based on the Company's senior unsecured debt rating, per annum.


(c)	Face value, net of required amortizations; assumes no maturity or balloon principal payments; excludes finance leases.


(d)	Interest expense calculated based on current interest rates.


(e)	Interest expense calculated based on current interest rates until the sooner of the (1) stated maturity date or (2) the Anticipated Repayment Date, at which time the face value amount outstanding of such indebtedness is refinanced at current rates, plus 12.5 bps.


(f)	Interest expense calculated based on current interest rates as of March 31, 2020. Calculation assumes no changes to future interest rate margin spread over LIBOR due to changes in the borrower’s senior unsecured credit rating.


(g)	Interest expense calculated based on current interest rates as of March 31, 2020, plus 12.5 bps.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX

DEFINITIONS

Non-GAAP Financial Measures, Segment Measures and Other Calculations

This Supplement includes presentations of Adjusted EBITDA, Adjusted Funds from Operations ("AFFO"), including per share amounts, Funds from Operations ("FFO"), including per share amounts, and Organic Contribution to Site Rental Revenues, which are non-GAAP financial measures. These non-GAAP financial measures are not intended as alternative measures of operating results or cash flow from operations (as determined in accordance with Generally Accepted Accounting Principles ("GAAP")).

Our non-GAAP financial measures may not be comparable to similarly titled measures of other companies, including other companies in the communications infrastructure sector or other REITs. Our definition of FFO is consistent with guidelines from the National Association of Real Estate Investment Trusts with the exception of the impact of income taxes in periods prior to our REIT conversion in 2014.

In addition to the non-GAAP financial measures used herein, we also provide Segment Site Rental Gross Margin, Segment Services and Other Gross Margin and Segment Operating Profit, which are key measures used by management to evaluate our operating segments. These segment measures are provided pursuant to GAAP requirements related to segment reporting. In addition, we provide the components of certain GAAP measures, such as capital expenditures.

Our non-GAAP financial measures are presented as additional information because management believes these measures are useful indicators of the financial performance of our business. Among other things, management believes that:

•

Adjusted EBITDA is useful to investors or other interested parties in evaluating our financial performance. Adjusted EBITDA is the primary measure used by management (1) to evaluate the economic productivity of our operations and (2) for purposes of making decisions about allocating resources to, and assessing the performance of, our operations. Management believes that Adjusted EBITDA helps investors or other interested parties meaningfully evaluate and compare the results of our operations (1) from period to period and (2) to our competitors, by removing the impact of our capital structure (primarily interest charges from our outstanding debt) and asset base (primarily depreciation, amortization and accretion) from our financial results. Management also believes Adjusted EBITDA is frequently used by investors or other interested parties in the evaluation of the communications infrastructure sector and other REITs to measure financial performance without regard to items such as depreciation, amortization and accretion which can vary depending upon accounting methods and the book value of assets. In addition, Adjusted EBITDA is similar to the measure of current financial performance generally used in our debt covenant calculations. Adjusted EBITDA should be considered only as a supplement to net income computed in accordance with GAAP as a measure of our performance.

•

AFFO, including per share amounts, is useful to investors or other interested parties in evaluating our financial performance. Management believes that AFFO helps investors or other interested parties meaningfully evaluate our financial performance as it includes (1) the impact of our capital structure (primarily interest expense on our outstanding debt and dividends on our preferred stock) and (2) sustaining capital expenditures, and excludes the impact of our (a) asset base (primarily depreciation, amortization and accretion) and (b) certain non-cash items, including straight-lined revenues and expenses related to fixed escalations and rent free periods. GAAP requires rental revenues and expenses related to leases that contain specified rental increases over the life of the lease to be recognized evenly over the life of the lease. In accordance with GAAP, if payment terms call for fixed escalations, or rent free periods, the revenue or expense is recognized on a straight-lined basis over the fixed, non-cancelable term of the contract. Management notes that Crown Castle uses AFFO only as a performance measure. AFFO should be considered only as a supplement to net income computed in accordance with GAAP as a measure of our performance and should not be considered as an alternative to cash flows from operations or as residual cash flow available for discretionary investment.

•

FFO, including per share amounts, is useful to investors or other interested parties in evaluating our financial performance. Management believes that FFO may be used by investors or other interested parties as a basis to compare our financial performance with that of other REITs. FFO helps investors or other interested parties meaningfully evaluate financial performance by excluding the impact of our asset base (primarily depreciation, amortization and accretion). FFO is not a key performance indicator used by Crown Castle. FFO should be considered only as a supplement to net income computed in accordance with GAAP as a measure of our performance and should not be considered as an alternative to cash flow from operations.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX

•

Organic Contribution to Site Rental Revenues is useful to investors or other interested parties in understanding the components of the year-over-year changes in our site rental revenues computed in accordance with GAAP. Management uses the Organic Contribution to Site Rental Revenues to assess year-over-year growth rates for our rental activities, to evaluate current performance, to capture trends in rental rates, new leasing activities and tenant non-renewals in our core business, as well to forecast future results. Organic Contribution to Site Rental Revenues is not meant as an alternative measure of revenue and should be considered only as a supplement in understanding and assessing the performance of our site rental revenues computed in accordance with GAAP.

We define our non-GAAP financial measures, segment measures and other calculations as follows:

Non-GAAP Financial Measures

Adjusted EBITDA. We define Adjusted EBITDA as net income (loss) plus restructuring charges (credits), asset write-down charges, acquisition and integration costs, depreciation, amortization and accretion, amortization of prepaid lease purchase price adjustments, interest expense and amortization of deferred financing costs, (gains) losses on retirement of long-term obligations, net (gain) loss on interest rate swaps, (gains) losses on foreign currency swaps, impairment of available-for-sale securities, interest income, other (income) expense, (benefit) provision for income taxes, cumulative effect of a change in accounting principle, (income) loss from discontinued operations and stock-based compensation expense.

Adjusted Funds from Operations. We define Adjusted Funds from Operations as FFO before straight-lined revenue, straight-lined expense, stock-based compensation expense, non-cash portion of tax provision, non-real estate related depreciation, amortization and accretion, amortization of non-cash interest expense, other (income) expense, (gains) losses on retirement of long-term obligations, net (gain) loss on interest rate swaps, (gains) losses on foreign currency swaps, acquisition and integration costs, and adjustments for noncontrolling interests, and less sustaining capital expenditures.

AFFO per share. We define AFFO per share as AFFO divided by diluted weighted average common shares outstanding.

Funds from Operations. We define Funds from Operations as net income plus real estate related depreciation, amortization and accretion and asset write-down charges, less noncontrolling interest and cash paid for preferred stock dividends, and is a measure of funds from operations attributable to CCIC common stockholders.

FFO per share. We define FFO per share as FFO divided by the diluted weighted average common shares outstanding.

Organic Contribution to Site Rental Revenues. We define the Organic Contribution to Site Rental Revenues as the sum of the change in GAAP site rental revenues related to (1) new leasing activity, including revenues from the construction of small cells and the impact of prepaid rent, (2) escalators and less (3) non-renewals of tenant contracts.

Segment Measures

Segment Site Rental Gross Margin. We define Segment Site Rental Gross Margin as segment site rental revenues less segment site rental cost of operations, excluding stock-based compensation expense and prepaid lease purchase price adjustments recorded in consolidated site rental cost of operations.

Segment Services and Other Gross Margin. We define Segment Services and Other Gross Margin as segment services and other revenues less segment services and other cost of operations, excluding stock-based compensation expense recorded in consolidated services and other cost of operations.

Segment Operating Profit. We define Segment Operating Profit as segment site rental gross margin plus segment services and other gross margin, less selling, general and administrative expenses attributable to the respective segment.

All of these measurements of profit or loss are exclusive of depreciation, amortization and accretion, which are shown separately. Additionally, certain costs are shared across segments and are reflected in our segment measures through allocations that management believes to be reasonable.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX

Other Calculations

Discretionary capital expenditures. We define discretionary capital expenditures as those capital expenditures made with respect to activities which we believe exhibit sufficient potential to enhance long-term stockholder value. They primarily consist of expansion or development of communications infrastructure (including capital expenditures related to (1) enhancing communications infrastructure in order to add new tenants for the first time or support subsequent tenant equipment augmentations or (2) modifying the structure of a communications infrastructure asset to accommodate additional tenants) and construction of new communications infrastructure. Discretionary capital expenditures also include purchases of land interests (which primarily relates to land assets under towers as we seek to manage our interests in the land beneath our towers), certain technology-related investments necessary to support and scale future customer demand for our communications infrastructure, and other capital projects.

Integration capital expenditures. We define integration capital expenditures as those capital expenditures made as a result of integrating acquired companies into our business.

Sustaining capital expenditures. We define sustaining capital expenditures as those capital expenditures not otherwise categorized as either discretionary or integration capital expenditures, such as (1) maintenance capital expenditures on our communications infrastructure assets that enable our tenants' ongoing quiet enjoyment of the communications infrastructure and (2) ordinary corporate capital expenditures.

The tables set forth on the following pages reconcile the non-GAAP financial measures used herein to comparable GAAP financial measures. The components in these tables may not sum to the total due to rounding.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX

Reconciliations of Non-GAAP Financial Measures to Comparable GAAP Financial Measures and Other Calculations:

Reconciliation of Historical Adjusted EBITDA:



	Three Months Ended March 31,
(dollars in millions)	2020			2019
(dollars in millions)				(As Restated)^(a)
Net income (loss)	$	185		$	193
Adjustments to increase (decrease) net income (loss):
Asset write-down charges	4			6
Acquisition and integration costs	5			4
Depreciation, amortization and accretion	399			394
Amortization of prepaid lease purchase price adjustments	5			5
Interest expense and amortization of deferred financing costs^(b)	175			168
(Gains) losses on retirement of long-term obligations	—			1
Interest income	(1		)	(2		)
Other (income) expense	—			1
(Benefit) provision for income taxes	5			6
Stock-based compensation expense	36			29
Adjusted EBITDA^(c)(d)	$	814		$	804

Reconciliation of Current Outlook for Adjusted EBITDA:



(dollars in millions)	Full Year 2020 Outlook
Net income (loss)	$998	to	$1,078
Adjustments to increase (decrease) net income (loss):
Asset write-down charges	$20	to	$30
Acquisition and integration costs	$7	to	$17
Depreciation, amortization and accretion	$1,503	to	$1,598
Amortization of prepaid lease purchase price adjustments	$18	to	$20
Interest expense and amortization of deferred financing costs^(b)	$691	to	$736
(Gains) losses on retirement of long-term obligations	$0	to	$—
Interest income	$(7)	to	$(3)
Other (income) expense	$(1)	to	$1
(Benefit) provision for income taxes	$16	to	$24
Stock-based compensation expense	$126	to	$130
Adjusted EBITDA^(c)(d)	$3,479	to	$3,524

Components of Historical Interest Expense and Amortization of Deferred Financing Costs:



	Three Months Ended March 31,
(dollars in millions)	2020			2019
Interest expense on debt obligations	$	174		$	167
Amortization of deferred financing costs and adjustments on long-term debt, net	5			5
Other, net	(4		)	(4		)
Interest expense and amortization of deferred financing costs	$	175		$	168


(a)	See our Annual Report on Form 10-K for the year ended December 31, 2019 for further information.


(b)	See the reconciliation of "components of current outlook for interest expense and amortization of deferred financing costs" herein.


(c)	See "Definitions of Non-GAAP Measures, Segment Measures and Other Calculations" herein for a discussion of our definition of Adjusted EBITDA.


(d)	The above reconciliation excludes line items included in our definition which are not applicable for the periods shown.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX

Components of Current Outlook for Interest Expense and Amortization of Deferred Financing Costs:



	Full Year 2020
(dollars in millions)	Outlook
Interest expense on debt obligations	$703	to	$723
Amortization of deferred financing costs and adjustments on long-term debt, net	$20	to	$25
Other, net	$(24)	to	$(19)
Interest expense and amortization of deferred financing costs	$691	to	$736

Reconciliation of Historical FFO and AFFO:



	Three Months Ended March 31,
(amounts in millions, except per share amounts)	2020			2019
(amounts in millions, except per share amounts)				(As Restated)^(f)
Net income (loss)	$	185		$	193
Real estate related depreciation, amortization and accretion	386			380
Asset write-down charges	4			6
Dividends/distributions on preferred stock	(28		)	(28		)
FFO^(a)(b)(c)(d)	$	547		$	550
Weighted-average common shares outstanding—diluted^(e)	418			417
FFO per share^{(a)(b)(c)(d)(e)}	$	1.31		$	1.32

FFO (from above)	$	547		$	550
Adjustments to increase (decrease) FFO:
Straight-lined revenue	(14		)	(17		)
Straight-lined expense	20			22
Stock-based compensation expense	36			29
Non-cash portion of tax provision	4			5
Non-real estate related depreciation, amortization and accretion	13			14
Amortization of non-cash interest expense	1			1
Other (income) expense	—			1
(Gains) losses on retirement of long-term obligations	—			1
Acquisition and integration costs	5			4
Sustaining capital expenditures	(21		)	(21		)
AFFO^(a)(b)(c)(d)	$	593		$	588
Weighted-average common shares outstanding—diluted^(e)	418			417
AFFO per share^{(a)(b)(c)(d)(e)}	$	1.42		$	1.41


(a)	See "Non-GAAP Financial Measures, Segment Measures and Other Calculations" herein for a discussion of our definitions of FFO, including per share amounts, and AFFO, including per share amounts.


(b)	FFO and AFFO are reduced by cash paid for preferred stock dividends during the period in which they are paid.


(c)	Attributable to CCIC common stockholders.


(d)	The above reconciliation excludes line items included in our definition which are not applicable for the periods shown.


(e)	For all periods presented, the diluted weighted-average common shares outstanding does not include any assumed conversion of preferred stock in the share count.


(f)	See our Annual Report on Form 10-K for the year ended December 31, 2019 for further information.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX

Reconciliation of Historical FFO and AFFO:



	Year Ended December 31,
(amounts in millions, except per share amounts)	2019			2018			2017			2016
(amounts in millions, except per share amounts)				(As Restated)^(f)
Net income (loss)	$	860		$	622		$	366		$	306
Real estate related depreciation, amortization and accretion	1,517			1,471			1,210			1,082
Asset write-down charges	19			26			17			35
Dividends/distributions on preferred stock	(113		)	(113		)	(30		)	(44		)
FFO^(a)(b)(c)(d)	$	2,284		$	2,005		$	1,563		$	1,379
Weighted-average common shares outstanding—diluted^(e)	418			415			383			341
FFO per share^{(a)(b)(c)(d)(e)}	$	5.47		$	4.83		$	4.08		$	4.04

FFO (from above)	$	2,284		$	2,005		$	1,563		$	1,379
Adjustments to increase (decrease) FFO:
Straight-lined revenue	(80		)	(72		)	—			(47		)
Straight-lined expense	93			90			93			94
Stock-based compensation expense	116			108			96			97
Non-cash portion of tax provision	5			2			9			7
Non-real estate related depreciation, amortization and accretion	55			56			31			27
Amortization of non-cash interest expense	1			7			9			14
Other (income) expense	(1		)	(1		)	(1		)	9
(Gains) losses on retirement of long-term obligations	2			106			4			52
Acquisition and integration costs	13			27			61			18
Sustaining capital expenditures	(117		)	(105		)	(85		)	(90		)
AFFO^(a)(b)(c)(d)	$	2,371		$	2,223		$	1,781		$	1,559
Weighted-average common shares outstanding—diluted^(e)	418			415			383			341
AFFO per share^{(a)(b)(c)(d)(e)}	$	5.68		$	5.36		$	4.65		$	4.57


(a)	See "Non-GAAP Financial Measures, Segment Measures and Other Calculations" herein for a discussion of our definitions of FFO, including per share amounts, and AFFO, including per share amounts.


(b)	FFO and AFFO are reduced by cash paid for preferred stock dividends during the period in which they are paid.


(c)	Attributable to CCIC common stockholders.


(d)	The above reconciliation excludes line items included in our definition which are not applicable for the periods shown.


(e)	For all periods presented, the diluted weighted-average common shares outstanding does not include any assumed conversion of preferred stock in the share count.


(f)	See our Annual Report on Form 10-K for the year ended December 31, 2019 for further information.

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX

Reconciliation of Current Outlook for FFO and AFFO:



(amounts in millions, except per share amounts)	Full Year 2020 Outlook
Net income (loss)	$998	to	$1,078
Real estate related depreciation, amortization and accretion	$1,454	to	$1,534
Asset write-down charges	$20	to	$30
Dividends/distributions on preferred stock	$(85)	to	$(85)
FFO^(a)(b)(c)(d)	$2,449	to	$2,494
Weighted-average common shares outstanding—diluted^(e)	424
FFO per share^{(a)(b)(c)(d)(e)}	$5.77	to	$5.88

FFO (from above)	$2,449	to	$2,494
Adjustments to increase (decrease) FFO:
Straight-lined revenue	$(53)	to	$(33)
Straight-lined expense	$70	to	$90
Stock-based compensation expense	$126	to	$130
Non-cash portion of tax provision	$(6)	to	$9
Non-real estate related depreciation, amortization and accretion	$49	to	$64
Amortization of non-cash interest expense	$(4)	to	$6
Other (income) expense	$(1)	to	$1
(Gains) losses on retirement of long-term obligations	$0	to	$0
Acquisition and integration costs	$7	to	$17
Sustaining capital expenditures	$(123)	to	$(103)
AFFO^(a)(b)(c)(d)	$2,572	to	$2,617
Weighted-average common shares outstanding—diluted^(e)	424
AFFO per share^{(a)(b)(c)(d)(e)}	$6.06	to	$6.17


(a)	See "Non-GAAP Financial Measures, Segment Measures and Other Calculations" herein for a discussion of our definitions of FFO, including per share amounts, and AFFO, including per share amounts.


(b)	FFO and AFFO are reduced by cash paid for preferred stock dividends during the period in which they are paid.


(c)	Attributable to CCIC common stockholders.


(d)	The above reconciliation excludes line items included in our definition which are not applicable for the periods shown.

(e)

Crown Castle International Corp.

First Quarter 2020



COMPANY OVERVIEW	FINANCIALS & METRICS	ASSET PORTFOLIO OVERVIEW	CAPITALIZATION OVERVIEW	APPENDIX

Net debt to Last Quarter Annualized Adjusted EBITDA calculation:



	Three Months Ended March 31,
(dollars in millions)	2020			2019
Total face value of debt	$	18,804		$	17,333
Ending cash, cash equivalents and restricted cash^(a)	472			408
Total net debt	$	18,332		$	16,925

Adjusted EBITDA	$	814		$	804		^(b)
Last quarter annualized Adjusted EBITDA	3,256			3,216			^(b)
Net debt to Last Quarter Annualized Adjusted EBITDA^(a)	5.6		x	5.3		x	^(b)

Cash Interest Coverage Ratio Calculation:



	Three Months Ended March 31,
(dollars in millions)	2020			2019
Adjusted EBITDA	$	814		$	804		^(b)
Interest expense on debt obligations	174			167
Interest Coverage Ratio	4.7		x	4.8		x

(a)

For purposes of calculating Net Debt to Last Quarter Annualized Adjusted EBITDA, beginning in the second quarter 2019, we changed our calculation of ending cash and cash equivalents to include restricted cash and as such, our calculation is not comparable to similar calculations previously provided. Our restricted cash is predominately comprised of the cash rental receipts held in reserve in accordance with certain of our debt instruments; any excess of such required reserve balances are subsequently released to us each month. If we would have excluded restricted cash from our calculation for the fourth quarter of 2019, our Net Debt to Last Quarter Annualized Adjusted EBITDA would have been 5.4x.


(b)	As restated. See our Annual Report on Form 10-K for the year ended December 31, 2019 for further information.