Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Post-Effective Amendment No. 1 to Registration Statement No. 333-166805 on Form S-3 of our reports dated February 28, 2011, relating to the financial statements of American Tower Corporation, and the effectiveness of American Tower Corporation’s internal control over financial reporting, appearing in the Annual Report on Form 10-K of American Tower Corporation for the year ended December 31, 2010, and to the reference to us under the heading “Experts” in the Prospectus, which is part of this Registration Statement.
/s/ Deloitte & Touche LLP
Boston, Massachusetts
January 3, 2012