International dial-in: (706) 645-9644Passcode: 94770658 When available, a replay of the call can be accessed until 11:59 p.m. ET on March 12, 2013. The replay dial-in numbers are as follows: U.S./Canada dial-in: (855) 859-2056 International dial-in: (404) 537-3406 Passcode: 94770658 American Tower will also sponsor a live simulcast and replay of the call on its website, www.americantower.com. About American Tower American Tower is a leading independent owner, operator and developer of wireless and broadcast communications real estate. American Tower currently owns and operates over 54,000 communications sites in the United States, Brazil, Chile, Colombia, Germany, Ghana, India, Mexico, Peru, South Africa and Uganda. For more information about American Tower, please visit www.americantower.com. Non-GAAP and Defined Financial Measures In addition to the results prepared in accordance with generally accepted accounting principles in the United States (GAAP) provided throughout this press release, the Company has presented the following non-GAAP and defined financial measures: Gross Margin, Operating Profit, Operating Profit Margin, Adjusted EBITDA, Adjusted EBITDA Margin, Funds From Operations, Adjusted Funds From Operations, Adjusted Funds From Operations per Share, Core Growth and Net Leverage Ratio. The Company defines Gross Margin as revenues less operating expenses, excluding stock-based compensation expense. The Company defines Operating Profit as Gross Margin less selling, general, administrative and development expense, excluding stock-based compensation expense and corporate expenses. For reporting purposes, the international rental and management segment Operating Profit and Gross Margin also include interest income, TV Azteca, net. These measures of Gross Margin and Operating Profit are also before interest income, interest expense, loss on retirement of long-term obligations, other income (expense), net income attributable to non-controlling interest, income (loss) on equity method investments, income taxes and discontinued operations. The Company defines Operating Profit Margin as the percentage that results from dividing Operating Profit by revenue. The Company defines Adjusted EBITDA as net income before income (loss) from discontinued operations, net, income (loss) from equity method investments, income tax provision (benefit), other (income) expense, loss on retirement of long-term obligations, interest expense, interest income, other operating expenses, depreciation, amortization and accretion and stock-based compensation expense. The Company defines Adjusted EBITDA Margin as the percentage that results from dividing Adjusted EBITDA by total revenue. The Company defines Funds From Operations as net income before real estate related depreciation, amortization and accretion. The Company defines Adjusted Funds From Operations as Funds From Operations before straight-line revenue and expense, stock-based compensation expense, non-cash portion of tax provision, non-real estate related depreciation, amortization and accretion, amortization of deferred financing costs, debt discounts and capitalized interest, other (income) expense, loss on retirement of long-term obligations, other operating (income) expense, less cash payments related to capital improvements and cash payments related to corporate capital expenditures. The Company defines Adjusted Funds From Operations per Share as Adjusted Funds From Operations divided by the diluted weighted average common shares outstanding. Funds From Operations for the three and twelve months ended December 31, 2011 are presented on a pro forma basis and reflect adjustments for income tax provision as if the REIT conversion had occurred on January 1, 2011. The Company defines Core Growth in total rental and management revenue, Adjusted EBITDA and Adjusted Funds From Operations as the increase or decrease, expressed as a percentage, resulting from a comparison of financial results for a current period with corresponding financial results for the corresponding period in a prior year, in each case, excluding the impact of straight-line revenue and expense recognition, foreign currency exchange rate fluctuations and significant one-time items. The Company defines Net Leverage Ratio as net debt (total debt, less cash and cash equivalents) divided by last quarter annualized Adjusted EBITDA. These measures are not intended to replace financial performance measures determined in accordance with GAAP. Rather, they are presented as additional information because management believes they are useful indicators of the current financial performance of the Company’s core businesses. The Company believes that these measures can assist in comparing company performances on a consistent basis irrespective of depreciation and amortization or capital structure. Depreciation and amortization can vary significantly among companies depending on accounting methods, particularly where acquisitions or non-operating factors, including historical cost bases, are involved. Notwithstanding the foregoing, the Company’s measures of Gross Margin, Operating Profit, Operating Profit Margin, Adjusted EBITDA, Adjusted EBITDA Margin, Funds From Operations, Adjusted Funds From Operations, Adjusted Funds From Operations per Share, Core Growth and Net Leverage Ratio may not be comparable to similarly titled measures used by other companies.