Common use of SUPPLEMENTAL INDENTURE NO Clause in Contracts

SUPPLEMENTAL INDENTURE NO. 6 (the “Supplemental Indenture”), dated as of January 8, 2013, between American Tower Corporation, a Delaware corporation (the “Company”), and The Bank of New York Mellon Trust Company, N.A., a national banking association, as trustee (the “Trustee”).

SUPPLEMENTAL INDENTURE NO. 6 5 (the “Supplemental Indenture”), dated as of January 8March 12, 20132012, between American Tower Corporation, a Delaware corporation (the “Company”), and The Bank of New York Mellon Trust Company, N.A., a national banking association, as trustee (the “Trustee”).

SUPPLEMENTAL INDENTURE NO. 6 3 (the “Supplemental Indenture”), dated as of January 8October 6, 20132011, between American Tower Corporation, a Delaware corporation (the “Company”), and The Bank of New York Mellon Trust Company, N.A., a national banking association, as trustee (the “Trustee”).

SUPPLEMENTAL INDENTURE NO. 6 2 (the “Supplemental Indenture”), dated as of January 8December 7, 20132010, between American Tower Corporation, a Delaware corporation (the “Company”), and The Bank of New York Mellon Trust Company, N.A., a national banking association, as trustee (the “Trustee”).