	December 31, 2011					March 31, 2012

	Carrying Amount			Fair Value		Carrying Amount			Fair Value
Revolving Credit Facility(1)	$	96,000		$	96,000	$	190,000		$	190,000
Term Loan Facility(1)		487,500			487,500		481,250			481,250
7¹/4% GBP Senior Subordinated Notes due 2014 (the "7¹/4% Notes")(2)(3)		233,115			233,115		240,210			240,210
6⁵/8% Senior Subordinated Notes due 2016 (the "6⁵/8% Notes")(2)(3)		318,025			320,400		318,147			319,392
7¹/2% CAD Senior Subordinated Notes due 2017 (the "Subsidiary Notes")(2)(4)		171,273			174,698		175,245			180,940
8³/4% Senior Subordinated Notes due 2018 (the "8³/4% Notes")(2)(3)		200,000			209,000		200,000			206,870
8% Senior Subordinated Notes due 2018 (the "8% Notes")(2)(3)		49,806			47,607		49,813			54,140
6³/4% Euro Senior Subordinated Notes due 2018 (the "6³/4% Notes")(2)(3)		328,750			312,352		338,508			343,623
7³/4% Senior Subordinated Notes due 2019 (the "7³/4% Notes due 2019")(2)(3)		400,000			422,750		400,000			437,000
8% Senior Subordinated Notes due 2020 (the "8% Notes due 2020")(2)(3)		300,000			313,313		300,000			317,625
8³/8% Senior Subordinated Notes due 2021 (the "8³/8% Notes")(2)(3)		548,346			586,438		548,389			598,813
Real Estate Mortgages, Capital Leases and Other(5)		220,773			220,773		212,114			212,114

Total Long-term Debt		3,353,588					3,453,676
Less Current Portion		(73,320	)				(63,229	)

Long-term Debt, Net of Current Portion	$	3,280,268				$	3,390,447

(1): The capital stock or other equity interests of most of our U.S. subsidiaries, and up to 66% of the capital stock or other equity interests of our first-tier foreign subsidiaries, are pledged to secure these debt instruments, together with all intercompany obligations of foreign subsidiaries owed to us or to one of our U.S. subsidiary guarantors. The fair value of this long-term debt approximates the carrying value (as borrowings under these debt instruments are based on current variable market interest rates as of December 31, 2011 and March 31, 2012, respectively).
(2): The fair values of these debt instruments are based on quoted market prices for these notes on December 31, 2011 and March 31, 2012, respectively.
(3): Collectively, the "Parent Notes". IMI is the direct obligor on the Parent Notes, which are fully and unconditionally guaranteed, on a senior subordinated basis, by substantially all of its direct and indirect wholly owned U.S. subsidiaries (the "Guarantors"). These guarantees are joint and several obligations of the Guarantors. Iron Mountain Canada Corporation ("Canada Company") and the remainder of our subsidiaries do not guarantee the Parent Notes.
(4): Canada Company is the direct obligor on the Subsidiary Notes, which are fully and unconditionally guaranteed, on a senior subordinated basis, by IMI and the Guarantors. These guarantees are joint and several obligations of IMI and the Guarantors.
(5): We believe the fair value of this debt approximates its carrying value.

On June 27, 2011, we entered into a credit agreement that consists of (1) revolving credit facilities under which we can borrow, subject to certain limitations as defined in the credit agreement, up to an aggregate amount of $725,000 (including Canadian dollars, British pounds sterling and Euros, among other currencies) (the "Revolving Credit Facility") and (2) a $500,000 term loan facility (the "Term Loan Facility," and collectively with the Revolving Credit Facility, the "Credit Agreement"). We have the right to increase the aggregate amount available to be borrowed under the Credit Agreement up to a maximum of $1,800,000. The Revolving Credit Facility is supported by a group of 19 banks. IMI, Iron Mountain Information Management, Inc. ("IMIM"), Canada Company, IME, Iron Mountain Australia Pty Ltd., Iron Mountain Switzerland Gmbh and any other subsidiary of IMIM designated by IMIM (the "Other Subsidiaries") may, with the consent of the administrative agent, as defined in the Credit Agreement, borrow under certain of the following tranches of the Revolving Credit Facility: (1) tranche one in the amount of $400,000 is available to IMI and IMIM in U.S. dollars, British pounds sterling and Euros, (2) tranche two in the amount of $150,000 is available to IMI or IMIM in either U.S. dollars or Canadian dollars and available to Canada Company in Canadian dollars and (3) tranche three in the amount of $175,000 is available to IMI or IMIM and the Other Subsidiaries in U.S. dollars, Canadian dollars, British pounds sterling, Euros and Australian dollars, among others. The Revolving Credit Facility terminates on June 27, 2016, at which point all revolving credit loans under such facility become due. With respect to the Term Loan Facility, loan payments are required through maturity on June 27, 2016 in equal quarterly installments of the aggregate annual amounts based upon the following percentage of the original principal amount in the table below (except that each of the first three quarterly installments in the fifth year shall be 10% of the original principal amount and the final quarterly installment in the fifth year shall be 35% of the original principal):

The Term Loan Facility may be prepaid without penalty or premium, in whole or in part, at any time. IMI and IMIM guarantee the obligations of each of the subsidiary borrowers. The capital stock or other equity interests of most of the U.S. subsidiaries, and up to 66% of the capital stock or other equity interests of our first-tier foreign subsidiaries, are pledged to secure the Credit Agreement, together with all intercompany obligations of foreign subsidiaries owed to us or to one of our U.S. subsidiary guarantors. The interest rate on borrowings under the Credit Agreement varies depending on our choice of interest rate and currency options, plus an applicable margin, which varies based on certain financial ratios. Additionally, the Credit Agreement requires the payment of a commitment fee on the unused portion of the Revolving Credit Facility, which fee ranges from between 0.3% to 0.5% based on certain financial ratios. There are also fees associated with any outstanding letters of credit. As of March 31, 2012, we had $190,000 of outstanding borrowings under the Revolving Credit Facility, all of which was denominated in U.S. dollars; we also had various outstanding letters of credit totaling $6,217. The remaining availability on March 31, 2012, based on IMI's leverage ratio, which is calculated based on the last 12 months' earnings before interest, taxes, depreciation and amortization ("EBITDA"), and other adjustments as defined in the Credit Agreement and current external debt, under the Revolving Credit Facility was $528,783. The interest rate in effect under both the Revolving Credit Facility and Term Loan Facility was 2.3% as of March 31, 2012. For the three months ended March 31, 2011 and 2012, we recorded commitment fees and letters of credit fees of $489 and $600, respectively, based on the unused balances under our revolving credit facilities and outstanding letters of credit.

The Credit Agreement, our indentures and other agreements governing our indebtedness contain certain restrictive financial and operating covenants, including covenants that restrict our ability to complete acquisitions, pay cash dividends, incur indebtedness, make investments, sell assets and take certain other corporate actions. The covenants do not contain a rating trigger. Therefore, a change in our debt rating would not trigger a default under the Credit Agreement, our indentures or other agreements governing our indebtedness. The Credit Agreement, as well as our indentures, use EBITDA-based calculations as primary measures of financial performance, including leverage and fixed charge coverage ratios. IMI's revolving credit and term leverage ratio was 3.4 and 3.5 as of December 31, 2011 and March 31, 2012, respectively, compared to a maximum allowable ratio of 5.5. Similarly, our bond leverage ratio, per the indentures, was 3.9 and 4.5 as of December 31, 2011 and March 31, 2012, respectively, compared to a maximum allowable ratio of 6.5. IMI's revolving credit and term loan fixed charge coverage ratio was 1.5 as of both December 31, 2011 and March 31, 2012 compared to a minimum allowable ratio of 1.2. Noncompliance with these leverage and fixed charge coverage ratios would have a material adverse effect on our financial condition and liquidity.