American Tower (AMT) 8-K American Tower Corporation Prices Senior Notes Offering

Exhibit 12.1

STATEMENT REGARDING COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

Ratio of Earnings to Fixed Charges

American Tower Corporation

The following table reflects the computation of the ratio of earnings to fixed charges for the periods presented (in thousands):

	Year Ended December 31,											Nine Months Ended September 30,
	2005			2006		2007		2008		2009		2010
Computation of Earnings:
(Loss) income from continuing operations before income taxes and (loss) income on equity method investments	$	(135,554	)	$	70,864	$	152,840	$	371,920	$	421,487	$	419,239
Add:
Interest expense (1)		223,911			217,134		237,314		255,073		251,291		178,511
Operating leases		50,601			71,092		73,916		79,189		82,522		67,123
Amortization of interest capitalized		2,563			2,600		2,622		2,692		2,751		1,570
Earnings as adjusted		141,521			361,690		466,692		708,874		758,051		666,443
Computation of fixed charges:
Interest expense		223,911			217,134		237,314		255,073		251,291		178,511
Interest capitalized		473			651				770		495		602
Operating leases		50,601			71,092		73,916		79,189		82,522		67,123
Fixed charges		274,985			288,877		311,230		335,032		334,308		246,236
(Deficiency) excess in earnings required to cover fixed charges	$	(133,464	)	$	72,813	$	155,462	$	373,842		423,743		420,207
Ratio of earnings to fixed charges (2)					1.25x		1.50x		2.12x		2.27x		2.71x

(1) Interest expense includes amortization of deferred financing costs. Interest expense also includes an amount related to our capital lease with TV Azteca.

(2) For the purpose of this calculation, “earnings” consists of (loss) income from continuing operations before income taxes and (loss) income on equity method investments, fixed charges (excluding interest capitalized), and amortization of interest capitalized. “Fixed charges” consist of interest expensed and capitalized, amortization of debt discount and related issuance costs and the component of rental expense associated with operating leases believed by management to be representative of the interest factor thereon.