ABOUT THIS PROSPECTUS
This prospectus is part of a registration statement that we filed with the Securities and Exchange Commission (the SEC)
utilizing an automatic shelf registration process. Under this shelf process, we may periodically sell the securities described in this prospectus in one or more offerings. This prospectus provides a general description of our common stock, preferred
stock, debt securities, depositary shares, warrants, purchase contracts and units that we may offer. Each time we offer securities, we will provide a prospectus supplement that will contain specific information about the terms of that offering. The
prospectus supplement may also add, update or change information, including information about us, contained in this prospectus. Therefore, before making your investment decision, you should carefully read:
any applicable prospectus supplement, which (1) explains the specific terms of the securities being offered and (2) updates and changes
information in this prospectus; and
the documents referred to in Where You Can Find More Information on page 62 for information about us, including our financial statements.
References to we, us, our, the Company and American
Tower are references to American Tower Corporation and its consolidated subsidiaries, unless it is clear from the context that we mean only American Tower Corporation. References herein to our predecessor corporation are references to American
Tower Corporation prior to December 31, 2011, the effective date of the merger of American Tower Corporation with and into its wholly owned subsidiary, American Tower REIT Inc. (the surviving company, which was renamed American Tower
Corporation after the merger).
NOTE REGARDING FORWARD-LOOKING STATEMENTS
This prospectus, any prospectus supplement and the documents incorporated by reference contain statements about future events and
expectations, or forward-looking statements, all of which are inherently uncertain. We have based those forward-looking statements on our current expectations and projections about future results. When we use words such as anticipates,
intends, plans, believes, estimates, expects, or similar expressions, we do so to identify forward-looking statements. Examples of forward-looking statements include statements we make
regarding future prospects of growth in the communications site leasing industry, the effects of consolidation among companies in our industry and among our tenants and other competitive pressures, the level of future expenditures by companies in
this industry and other trends in this industry, changes in zoning, tax and other laws and regulations, our substantial leverage and debt service obligations, our ability to maintain or increase our market share, our future operating results,
economic, political and other events, particularly those relating to our international operations, our ability to remain qualified for taxation as a real estate investment trust for U.S. federal income tax purposes (REIT), our plans to
fund our future liquidity needs, the amount and timing of any future distributions including those we are required to make as a REIT, our future financing transactions, our ability to protect our rights to the land under our towers, our future
capital expenditure levels and natural disasters and similar events. These statements are based on our managements beliefs and assumptions, which in turn are based on currently available information. These assumptions could prove inaccurate.
You should keep in mind that any forward-looking statement we make in this prospectus, any prospectus supplement, the
documents incorporated by reference or elsewhere speaks only as of the date on which we make it. New risks and uncertainties arise from time to time, and it is impossible for us to predict these events or how they may affect us. In any event, these
and other important factors, including those set forth under the caption Risk Factors in a prospectus supplement and the documents incorporated by reference, may cause actual results to differ materially from those indicated by our
forward-looking statements. We have no duty, and do not intend, to update or revise the forward-looking statements we make in this prospectus, any prospectus supplement, the documents incorporated by reference or elsewhere, except as may be required
by law. In light of these risks and uncertainties, you should keep in mind that the future events or circumstances described in any forward-looking statement we make in this prospectus, any prospectus supplement, the documents incorporated by
reference or elsewhere might not occur.