Common Contracts

38 similar Supplemental Indenture contracts by American Tower Corp /Ma/

AMERICAN TOWER CORPORATION and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 8 Dated as of March 14, 2025 to BASE INDENTURE Dated as of June 1, 2022 $1,000,000,000 Principal Amount $650,000,000 4.900% SENIOR NOTES...
Supplemental Indenture • March 14th, 2025 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 8 (the “Supplemental Indenture”), dated as of March 14, 2025, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank Trust Company, National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 7 Dated as of November 21, 2024 to BASE INDENTURE Dated as of June 1, 2022 $1,200,000,000 Principal Amount $600,000,000 5.000% SENIOR...
Supplemental Indenture • November 21st, 2024 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 7 (the “Supplemental Indenture”), dated as of November 21, 2024, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank Trust Company, National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION as Trustee and Elavon Financial Services DAC, UK Branch As Paying Agent SUPPLEMENTAL INDENTURE NO. 6 Dated as of May 29, 2024 to BASE INDENTURE Dated as of June 1, 2022...
Supplemental Indenture • May 29th, 2024 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 6 (the “Supplemental Indenture”), dated as of May 29, 2024, between American Tower Corporation, a Delaware corporation (the “Company”), U.S. Bank Trust Company, National Association, a national banking association, as trustee (the “Trustee”), and Elavon Financial Services DAC, UK Branch, as paying agent (the “Paying Agent”).

AMERICAN TOWER CORPORATION and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 5 Dated as of March 7, 2024 to BASE INDENTURE Dated as of June 1, 2022 $1,300,000,000 Principal Amount $650,000,000 5.200% SENIOR NOTES...
Supplemental Indenture • March 7th, 2024 • American Tower Corp /Ma/ • Real estate investment trusts

WHEREAS, the Company and the Trustee have executed and delivered a base indenture, dated as of June 1, 2022 (the “Base Indenture,” and, together with this Supplemental Indenture, as amended, supplemented or otherwise modified from time to time, the “Indenture”) to provide for the future issuance of the Company’s senior debt securities to be issued from time to time in one or more series;

AMERICAN TOWER CORPORATION and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 4 Dated as of September 15, 2023 to BASE INDENTURE Dated as of June 1, 2022 $1,500,000,000 Principal Amount $750,000,000 5.800% SENIOR...
Supplemental Indenture • September 15th, 2023 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 4 (the “Supplemental Indenture”), dated as of September 15, 2023, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank Trust Company, National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 3 Dated as of May 25, 2023 to BASE INDENTURE Dated as of June 1, 2022 $1,500,000,000 Principal Amount $650,000,000 5.250% SENIOR NOTES...
Supplemental Indenture • May 25th, 2023 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 3 (the “Supplemental Indenture”), dated as of May 25, 2023, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank Trust Company, National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION as Trustee and Elavon Financial Services DAC, UK Branch As Paying Agent SUPPLEMENTAL INDENTURE NO. 2 Dated as of May 16, 2023 to BASE INDENTURE Dated as of June 1, 2022...
Supplemental Indenture • May 16th, 2023 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 2 (the “Supplemental Indenture”), dated as of May 16, 2023, between American Tower Corporation, a Delaware corporation (the “Company”), U.S. Bank Trust Company, National Association, a national banking association, as trustee (the “Trustee”), and Elavon Financial Services DAC, UK Branch, as paying agent (the “Paying Agent”).

AMERICAN TOWER CORPORATION and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 1 Dated as of March 3, 2023 to BASE INDENTURE Dated as of June 1, 2022 $1,500,000,000 Principal Amount $700,000,000 5.500% SENIOR NOTES...
Supplemental Indenture • March 3rd, 2023 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 1 (the “Supplemental Indenture”), dated as of March 3, 2023, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank Trust Company, National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 12 Dated as of April 1, 2022 to BASE INDENTURE Dated as of June 4, 2019 $1,300,000,000 Principal Amount $650,000,000 3.650% SENIOR NOTES...
Supplemental Indenture • April 1st, 2022 • American Tower Corp /Ma/ • Real estate investment trusts • New York

SUPPLEMENTAL INDENTURE NO. 12 (the “Supplemental Indenture”), dated as of April 1, 2022, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank Trust Company, National Association, a national banking association, as successor in interest to U.S. Bank National Association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee and Elavon Financial Services DAC, UK Branch As Paying Agent SUPPLEMENTAL INDENTURE NO. 11 Dated as of October 5, 2021 to BASE INDENTURE Dated as of June 4, 2019 €1,000,000,000...
Supplemental Indenture • October 5th, 2021 • American Tower Corp /Ma/ • Real estate investment trusts • New York

SUPPLEMENTAL INDENTURE NO. 11 (the “Supplemental Indenture”), dated as of October 5, 2021, between American Tower Corporation, a Delaware corporation (the “Company”), U.S. Bank National Association, a national banking association, as trustee (the “Trustee”), and Elavon Financial Services DAC, UK Branch, as paying agent (the “Paying Agent”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 10 Dated as of September 27, 2021 to BASE INDENTURE Dated as of June 4, 2019 $1,300,000,000 Principal Amount $600,000,000 1.450% SENIOR NOTES DUE 2026...
Supplemental Indenture • September 27th, 2021 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 10 (the “Supplemental Indenture”), dated as of September 27, 2021, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee and Elavon Financial Services DAC, UK Branch As Paying Agent SUPPLEMENTAL INDENTURE NO. 9 Dated as of May 21, 2021 to BASE INDENTURE Dated as of June 4, 2019 €2,000,000,000...
Supplemental Indenture • May 21st, 2021 • American Tower Corp /Ma/ • Real estate investment trusts • New York

SUPPLEMENTAL INDENTURE NO. 9 (the “Supplemental Indenture”), dated as of May 21, 2021, between American Tower Corporation, a Delaware corporation (the “Company”), U.S. Bank National Association, a national banking association, as trustee (the “Trustee”), and Elavon Financial Services DAC, UK Branch, as paying agent (the “Paying Agent”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 8 Dated as of March 29, 2021 to BASE INDENTURE Dated as of June 4, 2019 $1,400,000,000 Principal Amount $700,000,000 1.600% SENIOR NOTES DUE 2026...
Supplemental Indenture • March 29th, 2021 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 8 (the “Supplemental Indenture”), dated as of March 29, 2021, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 7 Dated as of November 20, 2020 to BASE INDENTURE Dated as of June 4, 2019 $1,700,000,000 Principal Amount $500,000,000 0.600% SENIOR NOTES DUE 2024...
Supplemental Indenture • November 20th, 2020 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 7 (the “Supplemental Indenture”), dated as of November 20, 2020, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 6 Dated as of September 28, 2020 to BASE INDENTURE Dated as of June 4, 2019 $800,000,000 Principal Amount $1.875% SENIOR NOTES DUE 2030
Supplemental Indenture • September 28th, 2020 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 6 (the “Supplemental Indenture”), dated as of September 28, 2020, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee and Elavon Financial Services DAC, UK Branch As Paying Agent SUPPLEMENTAL INDENTURE NO. 5 Dated as of September 10, 2020 to BASE INDENTURE Dated as of June 4, 2019 €1,400,000,000...
Supplemental Indenture • September 10th, 2020 • American Tower Corp /Ma/ • Real estate investment trusts • New York

SUPPLEMENTAL INDENTURE NO. 5 (the “Supplemental Indenture”), dated as of September 10, 2020, between American Tower Corporation, a Delaware corporation (the “Company”), U.S. Bank National Association, a national banking association, as trustee (the “Trustee”), and Elavon Financial Services DAC, UK Branch, as paying agent (the “Paying Agent”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 4 Dated as of June 3, 2020 to BASE INDENTURE Dated as of June 4, 2019 $2,000,000,000 Principal Amount $500,000,000 1.300% SENIOR NOTES DUE 2025...
Supplemental Indenture • June 3rd, 2020 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 4 (the “Supplemental Indenture”), dated as of June 3, 2020, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 3 Dated as of January 10, 2020 to BASE INDENTURE Dated as of June 4, 2019 $1,500,000,000 Principal Amount $750,000,000 2.400% SENIOR NOTES DUE 2025...
Supplemental Indenture • January 10th, 2020 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 3 (the “Supplemental Indenture”), dated as of January 10, 2020, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 2 Dated as of October 3, 2019 to BASE INDENTURE Dated as of June 4, 2019 $1,350,000,000 Principal Amount $750,000,000 2.750% SENIOR NOTES DUE 2027...
Supplemental Indenture • October 3rd, 2019 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 2 (the “Supplemental Indenture”), dated as of October 3, 2019, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 1 Dated as of June 13, 2019 to BASE INDENTURE Dated as of June 4, 2019 $2,300,000,000 Principal Amount $650,000,000 2.950% SENIOR NOTES DUE 2025...
Supplemental Indenture • June 13th, 2019 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 1 (the “Supplemental Indenture”), dated as of June 13, 2019, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 11 Dated as of March 15, 2019 to BASE INDENTURE Dated as of May 23, 2013 $1,250,000,000 Principal Amount $650,000,000 3.375% SENIOR NOTES DUE 2024...
Supplemental Indenture • March 15th, 2019 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 11 (the “Supplemental Indenture”), dated as of March 15, 2019, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 9 Dated as of December 8, 2017 to BASE INDENTURE Dated as of May 23, 2013 $1,400,000,000 Principal Amount $700,000,000 3.000% SENIOR NOTES DUE 2023...
Supplemental Indenture • December 8th, 2017 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 9 (the “Supplemental Indenture”), dated as of December 8, 2017, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 8 Dated as of June 30, 2017 to BASE INDENTURE Dated as of May 23, 2013 $750,000,000 Principal Amount $3.55% SENIOR NOTES DUE 2027
Supplemental Indenture • June 30th, 2017 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 8 (the “Supplemental Indenture”), dated as of June 30, 2017, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 6 Dated as of September 30, 2016 to BASE INDENTURE Dated as of May 23, 2013 $1,000,000,000 Principal Amount $600,000,000 2.250% SENIOR NOTES DUE 2022...
Supplemental Indenture • September 30th, 2016 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 6 (the “Supplemental Indenture”), dated as of September 30, 2016, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 5 Dated as of May 13, 2016 to BASE INDENTURE Dated as of May 23, 2013 $1,000,000,000 Principal Amount 3.375% SENIOR NOTES DUE 2026
Supplemental Indenture • May 13th, 2016 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 5 (the “Supplemental Indenture”), dated as of May 13, 2016, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 4 Dated as of January 12, 2016 to BASE INDENTURE Dated as of May 23, 2013 $1,250,000,000 Principal Amount $750,000,000 3.300% SENIOR NOTES DUE 2021...
Supplemental Indenture • January 12th, 2016 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 4 (the “Supplemental Indenture”), dated as of January 12, 2016, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 3 Dated as of May 7, 2015 to BASE INDENTURE Dated as of May 23, 2013 $1,500,000,000 Principal Amount $750,000,000 2.800% SENIOR NOTES DUE 2020...
Supplemental Indenture • May 7th, 2015 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 3 (the “Supplemental Indenture”), dated as of May 7, 2015, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 2 Dated as of August 7, 2014 to BASE INDENTURE Dated as of May 23, 2013 $650,000,000 Principal Amount 3.450% SENIOR NOTES DUE 2021
Supplemental Indenture • August 7th, 2014 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 2 (the “Supplemental Indenture”), dated as of August 7, 2014, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and U.S. BANK NATIONAL ASSOCIATION as Trustee SUPPLEMENTAL INDENTURE NO. 1 Dated as of August 19, 2013 to BASE INDENTURE Dated as of May 23, 2013 $1,250,000,000 Principal Amount $750,000,000 3.40% SENIOR NOTES DUE 2019...
Supplemental Indenture • August 19th, 2013 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 1 (the “Supplemental Indenture”), dated as of August 19, 2013, between American Tower Corporation, a Delaware corporation (the “Company”), and U.S. Bank National Association, a national banking association, as trustee (the “Trustee”).

AMERICAN TOWER CORPORATION and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. as Trustee SUPPLEMENTAL INDENTURE NO. 6 Dated as of January 8, 2013 to BASE INDENTURE Dated as of May 13, 2010 $1,000,000,000 Principal Amount 3.50% SENIOR NOTES DUE 2023
Supplemental Indenture • January 8th, 2013 • American Tower Corp /Ma/ • Real estate investment trusts

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”).

AMERICAN TOWER CORPORATION and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. as Trustee SUPPLEMENTAL INDENTURE NO. 6 Dated as of , 2013 to BASE INDENTURE Dated as of May 13, 2010 $1,000,000,000 Principal Amount 3.50% SENIOR NOTES DUE 2023
Supplemental Indenture • January 3rd, 2013 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 6 (the “Supplemental Indenture”), dated as of , 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”).

AMERICAN TOWER CORPORATION and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. as Trustee SUPPLEMENTAL INDENTURE NO. 5 Dated as of March 12, 2012 to BASE INDENTURE Dated as of May 13, 2010 $700,000,000 Principal Amount 4.70% SENIOR NOTES DUE 2022
Supplemental Indenture • March 12th, 2012 • American Tower Corp /Ma/ • Real estate investment trusts

SUPPLEMENTAL INDENTURE NO. 5 (the “Supplemental Indenture”), dated as of March 12, 2012, 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”).

AMERICAN TOWER CORPORATION and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. as Trustee SUPPLEMENTAL INDENTURE NO. 3 Dated as of October 6, 2011 to BASE INDENTURE Dated as of May 13, 2010 $500,000,000 Principal Amount 5.900% SENIOR NOTES DUE 2021
Supplemental Indenture • October 6th, 2011 • American Tower Corp /Ma/ • Communications services, nec

SUPPLEMENTAL INDENTURE NO. 3 (the “Supplemental Indenture”), dated as of October 6, 2011, 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”).

AMERICAN TOWER CORPORATION and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. as Trustee SUPPLEMENTAL INDENTURE NO. 3 Dated as of to BASE INDENTURE Dated as of May 13, 2010 $500,000,000 Principal Amount $5.900% SENIOR NOTES DUE 2021
Supplemental Indenture • October 4th, 2011 • American Tower Corp /Ma/ • Communications services, nec

SUPPLEMENTAL INDENTURE NO. 3 (the “Supplemental Indenture”), dated as of , 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”).

AMERICAN TOWER CORPORATION and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. as Trustee SUPPLEMENTAL INDENTURE NO. 2 Dated as of December 7, 2010 to BASE INDENTURE Dated as of May 13, 2010 $1,000,000,000 Principal Amount 4.500% SENIOR NOTES DUE 2018
Supplemental Indenture • December 9th, 2010 • American Tower Corp /Ma/ • Communications services, nec

SUPPLEMENTAL INDENTURE NO. 2 (the “Supplemental Indenture”), dated as of December 7, 2010, 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”).