VALIDITY OF THE SECURITIES
The validity of the securities described in this prospectus will be passed upon for American Tower by Cleary Gottlieb Steen &
Hamilton LLP, New York, New York. Certain legal matters will be passed upon for American Tower by Edmund DiSanto, Esq., Executive Vice President, Chief Administrative Officer, General Counsel and Secretary of American Tower. The validity of the
securities described in this prospectus will be passed upon for any underwriters or agents, as the case may be, by Shearman & Sterling LLP, New York, New York. Our qualification as a REIT, and the associated consequences to holders of our
stock, have been passed upon by Sullivan & Worcester LLP, Boston, Massachusetts.
The consolidated financial statements, and the related financial statement schedule, incorporated in this prospectus by
reference from the Companys Annual Report on Form 10-K, and the effectiveness of the Companys internal control over financial reporting have been audited by Deloitte & Touche LLP, an independent registered public accounting
firm, as stated in their reports, which are incorporated herein by reference. Those consolidated financial statements and financial statement schedule have been so incorporated in reliance upon the reports of such firm given upon their authority as
experts in accounting and auditing.
WHERE YOU CAN FIND MORE INFORMATION
We file annual, quarterly and current reports, proxy statements and other information with the SEC. Our SEC filings are available to the
public over the Internet at the SECs website at http://www.sec.gov. Please note that the SECs website is included in this prospectus and any applicable prospectus supplement as an inactive textual reference only. The information
contained on the SECs website is not incorporated by reference into this prospectus and should not be considered to be part of this prospectus, except as described in the following paragraph. You may also read and copy any document we file
with the SEC at its public reference facility at 100 F Street, NE, Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the operation of the public reference facility.
We incorporate by reference into this prospectus and any applicable prospectus supplement certain information we file with
the SEC, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is an important part of this prospectus. Certain information that we subsequently file with the SEC
will automatically update and supersede information in this prospectus and in our other filings with the SEC. We incorporate by reference the documents listed below, which we have already filed with the SEC, and any future filings we make with the
SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, until all the securities offered by this prospectus have been sold and all conditions to the consummation of such sales have been satisfied, except that we are not incorporating
any information included in a Current Report on Form 8-K that has been or will be furnished (and not filed) with the SEC, unless such information is expressly incorporated herein by a reference in a furnished Current Report on Form 8-K or other
our Annual Report on Form 10-K for the year ended December 31, 2015 filed with the SEC on February 26, 2016;
our Quarterly Report on Form 10-Q for the quarter ended March 31, 2016 filed with the SEC on April 29, 2016;
portions of our Definitive Proxy Statement on Schedule 14A filed with the SEC on April 22, 2016 that are incorporated by reference into Part III
of our Annual Report on Form 10-K for the year ended December 31, 2015;