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                    Contact Us

                    Investor Relations
                    Igor Khislavsky: Vice President, Investor Relations

                    Corporate Headquarters
                    American Tower Corporation
                    116 Huntington Ave. 11th Floor, Boston, MA 02116
                    617-375-7500  |  617-375-7575 fax

                    Transfer Agent
                    P.O. Box 505000, Louisville, KY 40233
                    866-201-5087  |  781-575-2879