Type	Name	Date
Indenture	Supplemental Indenture No. 3, by and between American Tower Corporation and U.S. Bank Trust Company, National Association, as trustee	05/25/2023
Indenture	Supplemental Indenture No. 2, by and among American Tower Corporation, U.S. Bank Trust Company, National Association, as trustee, and Elavon Financial Services DAC, UK Branch, as paying agent	05/16/2023
Indenture	Supplemental Indenture No. 9, by and among American Tower Corporation, U.S. Bank National Association, as trustee, and Elavon Financial Services DAC, UK Branch, as paying agent	05/21/2021
Indenture	Supplemental Indenture No. 8, by and between American Tower Corporation and U.S. Bank National Association, as trustee	03/29/2021
Indenture	Supplemental Indenture No. 7, by and between American Tower Corporation and U.S. Bank National Association, as trustee	11/20/2020
Indenture	Supplemental Indenture No. 6, by and between American Tower Corporation and U.S. Bank National Association, as trustee	09/28/2020
Indenture	Supplemental Indenture No. 5, by and among American Tower Corporation, U.S. Bank National Association, as trustee, and Elavon Financial Services DAC, UK Branch, as paying agent	09/10/2020
Indenture	Supplemental Indenture No. 4, by and between American Tower Corporation and U.S. Bank National Association, as trustee	06/03/2020
Indenture	Supplemental Indenture No. 3, by and between American Tower Corporation and U.S. Bank National Association, as trustee	01/10/2020
Indenture	Supplemental Indenture No. 2, by and between American Tower Corporation and U.S. Bank National Association, as trustee	10/03/2019
Indenture	Supplemental Indenture No. 1, by and between American Tower Corporation and U.S. Bank National Association, as trustee	06/13/2019
Indenture	Supplemental Indenture No. 9, by and between American Tower Corporation and U.S. Bank National Association, as trustee	12/08/2017
Indenture	Supplemental Indenture No. 8, by and between American Tower Corporation and U.S. Bank National Association, as trustee	06/30/2017
Indenture	Supplemental Indenture No. 7, by and between American Tower Corporation, U.S. Bank National Association, as trustee, and Elavon Financial Services DAC, UK Branch, as paying agent	04/06/2017
Indenture	Supplemental Indenture No. 6, by and between American Tower Corporation and U.S. Bank National Association, as trustee	09/30/2016
Indenture	Supplemental Indenture No. 5, by and between American Tower Corporation and U.S. Bank National Association, as trustee	05/13/2016
Indenture	Supplemental Indenture No. 4, by and between American Tower Corporation and U.S. Bank National Association, as trustee	01/12/2016
Indenture	Supplemental Indenture No. 3, by and between American Tower Corporation and U.S. Bank National Association, as trustee	05/07/2015
Indenture	Supplemental Indenture No. 2, by and between American Tower Corporation and U.S. Bank National Association, as trustee	08/07/2014
Indenture	Supplemental Indenture No. 2, by and between American Tower Corporation and U.S. Bank National Association, as trustee	08/07/2014
Indenture	Supplemental Indenture No. 2, by and between American Tower Corporation and U.S. Bank National Association, as trustee	08/07/2014
Indenture	Supplemental Indenture No. 1, by and between American Tower Corporation and U.S. Bank National Association, as trustee	08/19/2013
Indenture	Supplemental Indenture No. 6, by and between American Tower Corporation and The Bank of New York Mellon Trust Company, N.A., as Trustee	01/08/2013
Indenture	Supplemental Indenture No. 5, by and between American Tower Corporation and The Bank of New York Mellon Trust Company, N.A., as Trustee	03/12/2012
Indenture	Supplemental Indenture No. 3, by and between American Tower Corporation and The Bank of New York Mellon Trust Company, N.A., as Trustee	10/06/2011
Indenture	Supplemental Indenture No. 2, by and between American Tower Corporation and The Bank of New York Mellon Trust Company, N.A., as Trustee	12/09/2010