American Tower (AMT) 8-K American Tower Corporation Announces Closing of Mandatory Convertible Preferred Stock Offering

Exhibit 12.1

STATEMENT REGARDING COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS

Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends

American Tower Corporation

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

											Three Months Ended March 31,
	2009		2010		2011		2012		2013		2014
Computation of Earnings:
Income from continuing operations before income taxes and income on equity method investments	$	421,487	$	556,025	$	506,895	$	701,294	$	541,749	$	210,962
Add:
Interest expense (1)		251,291		247,504		313,328		403,150		459,779		143,678
Operating leases		82,522		90,001		109,817		125,706		148,573		47,754
Amortization of interest capitalized		2,751		2,819		2,218		2,315		2,406		608
Earnings as adjusted		758,051		896,349		932,258		1,232,465		1,152,507		403,002
Computation of fixed charges:
Interest expense (1)		251,291		247,504		313,328		403,150		459,779		143,678
Interest capitalized		495		1,011		2,096		1,926		1,817		503
Operating leases		82,522		90,001		109,817		125,706		148,573		47,754
Fixed charges		334,308		338,516		425,241		530,782		610,169		191,935
Preferred stock dividends		—		—		—		—		—		—
Total combined fixed charges and preferred stock dividends		334,308		338,516		425,241		530,782		610,169		191,935
Excess in earnings required to cover combined fixed charges and preferred stock dividends	$	423,743	$	557,833	$	507,017	$	701,683	$	542,338	$	211,067
Ratio of earnings to combined fixed charges and preferred stock dividends (2) (3)		2.27		2.65		2.19		2.32		1.89		2.10

(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 purposes of this calculation, “earnings” consists of income from continuing operations before income taxes, income on equity method investments, fixed charges (excluding interest capitalized and amortization of interest capitalized). “Fixed charges” consists of interest expensed and capitalized, amortization of debt discounts and premiums 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.

(3) There were no preferred stock outstanding for the indicated periods. Accordingly, the ratio of earnings to combined fixed charges and preferred stock dividends was identical to the ratio of earnings to fixed charges for each period.