Fitch to Rate American Tower Trust I Secured Tower Revenue Securities, Series 2013-1A & 2013-2A

  Fitch to Rate American Tower Trust I Secured Tower Revenue Securities,
  Series 2013-1A & 2013-2A

Business Wire

CHICAGO -- March 4, 2013

Fitch Ratings has issued a presale report on American Tower Trust I Secured
Tower Revenue Securities, series 2013-1A and series 2013-2A.

Fitch expects to rate the transaction and assign Rating Outlooks as follows:

--$500,000,000 class 2013-1A 'AAAsf'; Outlook Stable,

--$1,300,000,000 class 2013-2A 'AAAsf'; Outlook Stable.

The expected ratings are based on information provided by the issuer as of
March 1, 2013. The allocation of the deal balance between each class has not
been finalized at this time. For purposes of the presale report Fitch assumed
the allocation listed above.

The transaction is an issuance of notes backed by mortgages representing over
86% of the annualized run rate net cash flow (NCF) and guaranteed by the
direct parent of the borrowers. Those guarantees are secured by a pledge and
first priority perfected security interest in 100% of the equity interest of
the borrowers, which own or lease 5,195 wireless communication sites, and of
its direct parent, respectively. Both the direct and indirect parents of the
borrowers are special purpose entities.

Key Rating Drivers

Low Leverage: Fitch Ratings' NCF on the pool is $392.3 million, implying a
Fitch stressed debt service coverage ratio (DSCR) of 2.36x. The debt multiple
relative to Fitch's NCF is 4.59x, which equates to a debt yield of 21.8%.

Institutional Sponsorship: American Tower Corporation (rated 'BBB-', Outlook
Stable) is a leading independent owner of wireless tower sites and currently
operates over 54,000 towers throughout the United States, Brazil, Chile,
Colombia, Germany, Ghana, India, Mexico, Peru, South Africa and Uganda.

Strong Historical Performance: NCF from the existing collateral has increased
approximately 81.8% since the 2007-1 issuance due to the contractual rent
increases, fixed-cost base structure, and organic growth.

Amortization Post-ARD: The notes will be structured as interest only until the
anticipated repayment date (ARD). If the notes are not able to refinance on or
prior to the ARD for that series, all excess cash flow will be swept to pay
down the outstanding principal balance. Based on actual NCF, the notes would
fully amortize three years after the ARD (or 13 years from closing).

Rating Sensitivities

Fitch performed several stress scenarios in which Fitch's NCF was stressed.
Fitch determined that an 88.2% reduction in Fitch's NCF would cause the notes
to break even at 1.0x DSCR on an interest-only basis. Fitch evaluated the
sensitivity of the ratings and a 16% decline in NCF would result in a one
category downgrade to 'AAsf', while a 42% decline would result in a downgrade
to below investment-grade. The Rating Sensitivity section in the presale
report includes a detailed explanation of additional stresses and
sensitivities.

The presale report is available to all investors on Fitch's web site
'www.fitchratings.com'.

Additional information is available at 'www.fitchratings.com'. The ratings
above were solicited by, or on behalf of, the issuer, and therefore, Fitch has
been compensated for the provision of the ratings.

Applicable Criteria and Related Research:

--'Global Structured Finance Rating Criteria', June 6, 2012;

--'Criteria for Analyzing U.S. Wireless Tower Transactions', Dec. 4, 2012;

--'Criteria for Special-Purpose Vehicles in Structured Finance Transactions',
May 30, 2012.

Applicable Criteria and Related Research American Tower Trust I (US CMBS)

http://www.fitchratings.com/creditdesk/reports/report_frame.cfm?rpt_id=703313

Global Structured Finance Rating Criteria

http://www.fitchratings.com/creditdesk/reports/report_frame.cfm?rpt_id=679923

Criteria for Analyzing U.S. Wireless Tower Transactions

http://www.fitchratings.com/creditdesk/reports/report_frame.cfm?rpt_id=696123

Criteria for Special-Purpose Vehicles in Structured Finance Transactions

http://www.fitchratings.com/creditdesk/reports/report_frame.cfm?rpt_id=680591

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Contact:

Fitch Ratings
Primary Analyst:
Adam Ott, +1-312-368-2094
Director
Fitch Ratings, Inc.
70 West Madison
Chicago, IL 60602
or
Committee Chairperson:
Robert Vrchota, +1-312-368-3336
Managing Director
or
Media Relations:
Sandro Scenga, New York, +1 212-908-0278
sandro.scenga@fitchratings.com
 
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