American Tower Corporation Watch

Earnings Revised 10/29/24 American Tower Corporation, Q3 2024 Earnings Call, Oct 29, 2024 10/29/24 Other Revised 09/10/24 American Tower Corporation Presents at Bank of America 2024 Global Real Estate Conference, Sep-10-2024 01:30 PM 09/10/24 Other Revised 09/09/24 American Tower Corporation Presents at Goldman Sachs Communacopia + Technology Conference 2024, Sep-09-2024 01:45 PM 09/09/24 Other Revised 09/05/24 American Tower Corporation Presents at Bank of America’s 2024 Media, Communications and Entertainment Conference, Sep-05-2024 09:40 AM 09/05/24 Other Revised 09/04/24 American Tower Corporation Presents at Citi's 2024 Global TMT Conference, Sep-04-2024 02:10 PM 09/04/24 Other Revised 08/13/24 American Tower Corporation Presents at TD Cowen 10th Annual Communications Infrastructure Summit, Aug-13-2024 11:15 AM 08/13/24 Other Revised 10/01/24 American Tower Corporation Presents at KeyBanc Capital Markets Technology Leadership Forum, Aug-05-2024 03:00 PM 08/05/24 Earnings Revised 07/30/24 American Tower Corporation, Q2 2024 Earnings Call, Jul 30, 2024 07/30/24 Other Revised 06/05/24 American Tower Corporation Presents at Nareit REIT Week: 2024 Investor Conference, Jun-05-2024 08:45 AM 06/05/24 Other Revised 05/20/24 American Tower Corporation Presents at The 52nd J.P. Morgan Annual Global Technology, Media & Communications Conference, May-20-2024 03:10 PM 05/20/24 Other Revised 05/15/24 American Tower Corporation Presents at MoffettNathanson's Media, Internet & Communications Conference, May-15-2024 10:00 AM 05/15/24 Earnings Revised 04/30/24 American Tower Corporation, Q1 2024 Earnings Call, Apr 30, 2024 04/30/24 Other Revised 03/12/24 American Tower Corporation Presents at Deutsche Bank's 32 Annual Media, Internet & Telecom Conference, Mar-12-2024 08:50 AM 03/12/24 Other Revised 03/06/24 American Tower Corporation Presents at Citi's 2024 Global Property CEO Conference, Mar-06-2024 08:50 AM 03/06/24 Other Revised 03/05/24 American Tower Corporation Presents at 45th Annual Raymond James Institutional Investors Conference 2024, Mar-05-2024 01:05 PM 03/05/24 Earnings Revised 02/27/24 American Tower Corporation, Q4 2023 Earnings Call, Feb 27, 2024 02/27/24

Other Revised 02/02/24 American Tower Corporation Presents at UBS Global Media & Communications Conference, Dec-04-2023 02:15 PM 12/04/23 Earnings Revised 10/26/23 American Tower Corporation, Q3 2023 Earnings Call, Oct 26, 2023 10/26/23 Other Revised 09/28/23 American Tower Corporation Presents at 2023 Global Communications Infrastructure Conference, Sep-28-2023 09:30 AM 09/28/23 Other Revised 09/12/23 American Tower Corporation Presents at Bank of America 2023 Global Real Estate Conference, Sep-12-2023 11:05 AM 09/12/23 Other Revised 09/06/23 American Tower Corporation Presents at Goldman Sachs Communacopia & Technology Conference, Sep-06-2023 09:30 AM 09/06/23 Other Revised 08/08/23 American Tower Corporation Presents at 9th Annual Communications Infrastructure Summit, Aug-08-2023 11:15 AM 08/08/23 Other Revised 08/07/23 American Tower Corporation Presents at KeyBanc's Technology Leadership Forum 2023, Aug-07-2023 10:00 AM 08/07/23 Earnings Revised 08/07/23 American Tower Corporation, Q2 2023 Earnings Call, Jul 27, 2023 07/27/23 Other Revised 06/07/23 American Tower Corporation Presents at Nareit’s REITweek: 2023 Investor Conference, Jun-07-2023 11:45 AM 06/07/23 Other Revised 05/22/23 American Tower Corporation Presents at 51st Annual J.P. Morgan’s Global Technology, Media and Communications Conference 2023, May-22-2023 02:30 PM 05/22/23 Other Revised 05/17/23 American Tower Corporation Presents at SVB MoffettNathanson's Inaugural Technology, Media and Telecom Conference, May-17-2023 09:00 AM 05/17/23 Earnings Revised 04/26/23 American Tower Corporation, Q1 2023 Earnings Call, Apr 26, 2023 04/26/23 Other Revised 03/07/23 American Tower Corporation Presents at Citi's 2023 Global Property CEO Conference, Mar-07-2023 03:00 PM 03/07/23 Other Revised 03/07/23 American Tower Corporation Presents at Raymond James 44th Annual Institutional Investors Conference, Mar-07-2023 09:50 AM 03/07/23 Other Revised 02/28/23 American Tower Corporation Presents at 31st Annual Media, Internet & Telecom Conference, Feb-28-2023 11:20 AM 02/28/23 Earnings Revised 02/23/23 American Tower Corporation, Q4 2022 Earnings Call, Feb 23, 2023 02/23/23 Other Revised 01/04/23 American Tower Corporation Presents at Citi’s 2023 Communications, Media & Entertainment Conference, Jan-04-2023 09:30 AM 01/04/23

Earnings Revised 10/27/22 American Tower Corporation, Q3 2022 Earnings Call, Oct 27, 2022 10/27/22 Other Revised 10/03/22 American Tower Corporation Presents at Citi Global Digital Infrastructure Seminar 2022, Oct-03-2022 10:50 AM 10/03/22 Other Revised 09/14/22 American Tower Corporation Presents at Bank of America Global Real Estate Conference, Sep-14-2022 03:40 PM 09/14/22 Other Revised 09/13/22 American Tower Corporation Presents at Goldman Sachs Communacopia + Technology Conference 2022, Sep-13-2022 10:45 AM 09/13/22 Other Revised 08/09/22 American Tower Corporation Presents at Cowen 8th Annual Communications Infrastructure Summit, Aug-09-2022 11:10 AM 08/09/22 Other Revised 08/09/22 American Tower Corporation Presents at KeyBanc Capital Markets 23rd Annual Technology Leadership Forum, Aug-09-2022 10:00 AM 08/09/22 Earnings Revised 07/28/22 American Tower Corporation, Q2 2022 Earnings Call, Jul 28, 2022 07/28/22 Other Revised 06/08/22 American Tower Corporation Presents at Nareit’s REITweek: 2022 Investor Conference, Jun-08-2022 01:15 PM 06/08/22 Other Revised 05/24/22 American Tower Corporation Presents at RBC Global Communications Infrastructure Conference, May-24-2022 through May-25-2022 05/24/22 Other Revised 05/24/22 American Tower Corporation Presents at Global Towers Symposium, May-24-2022 03:00 PM 05/24/22 Other Revised 05/23/22 American Tower Corporation Presents at J.P. Morgan’s 50th Annual Global Technology, Media and Communications Conference 2022, May-23-2022 10:00 AM 05/23/22 Other Revised 05/18/22 American Tower Corporation Presents at MoffettNathanson Annual Media & Communications Summit, May-18-2022 03:00 PM 05/18/22 Earnings Revised 04/27/22 American Tower Corporation, Q1 2022 Earnings Call, Apr 27, 2022 04/27/22 Other Revised 03/14/22 American Tower Corporation Presents at 30th Annual Deutsche Bank Media, Internet & Telecom Conference, Mar-14-2022 09:35 AM 03/14/22 Earnings Revised 02/24/22 American Tower Corporation, Q4 2021 Earnings Call, Feb 24, 2022 02/24/22 Other Revised 01/05/22 American Tower Corporation Presents at Citi’s AppsEconomy Virtual Conference, Jan-05-2022 12:00 PM 01/05/22

Other Revised 12/06/21 American Tower Corporation (REIT) Presents at UBS Global TMT Virtual Conference, Dec-06-2021 10:00 AM 12/06/21 Other Revised 12/01/21 American Tower Corporation (REIT) Presents at 5th Annual Virtual Wells Fargo TMT Summit, Dec-01-2021 08:40 AM 12/01/21 Other Revised 11/17/21 American Tower Corporation (REIT) Presents at Morgan Stanley European Technology, Media & Telecom Conference 2021, Nov-17-2021 07:15 PM 11/17/21 Other Revised 11/15/21 American Tower Corporation (REIT), CoreSite Realty Corporation - M&A Call 11/15/21 Earnings Revised 10/28/21 American Tower Corporation (REIT), Q3 2021 Earnings Call, Oct 28, 2021 10/28/21 Other Revised 09/28/21 American Tower Corporation (REIT) Presents at Global Tower and Wireless Infrastructure Summit 2021, Sep-28-2021 04:00 PM 09/28/21 Other Revised 09/22/21 American Tower Corporation (REIT) Presents at Goldman Sachs 30th Annual Communacopia Conference, Sep-22-2021 09:40 AM 09/22/21 Other Revised 08/10/21 American Tower Corporation (REIT) Presents at 7th Annual Communications Infrastructure Summit, Aug-10-2021 11:00 AM 08/10/21 Earnings Revised 07/29/21 American Tower Corporation (REIT), Q2 2021 Earnings Call, Jul 29, 2021 07/29/21 Other Revised 06/14/21 American Tower Corporation (REIT) Presents at Credit Suisse 23rd Annual Communications Conference, Jun-14-2021 10:25 AM 06/14/21 Other Revised 06/09/21 American Tower Corporation (REIT) Presents at REITweek: 2021 Investor Conference, Jun-09-2021 10:15 AM 06/09/21 Other Revised 05/24/21 American Tower Corporation (REIT) Presents at JPMorgan 49th Annual Global Technology, Media and Communications Conference, May-24-2021 10:15 AM 05/24/21 Other Revised 05/12/21 American Tower Corporation (REIT) Presents at Moffett Nathanson 8th Annual Media & Communications Summit, May-12-2021 02:00 PM 05/12/21 Earnings Revised 04/29/21 American Tower Corporation (REIT), Q1 2021 Earnings Call, Apr 29, 2021 04/29/21 Other Revised 03/10/21 American Tower Corporation (REIT) Presents at Citi Virtual Global Property CEO Conference 2021, Mar-10-2021 10:30 AM 03/10/21 Other Revised 03/08/21 American Tower Corporation (REIT) Presents at Deutsche Bank 29th Annual Media, Internet & Telecom Conference, Mar-08-2021 09:00 AM 03/08/21 Other Revised 03/02/21 American Tower Corporation (REIT) Presents at Raymond James Associates 42nd Annual Institutional Investors Conference, Mar-02-2021 08:20 AM 03/02/21 Other Revised 03/01/21 American Tower Corporation (REIT) Presents at Morgan Stanley Technology, Media and Telecom Conference 2021, Mar-01-2021 09:30 AM 03/01/21 Earnings Revised 02/25/21 American Tower Corporation (REIT), Q4 2020 Earnings Call, Feb 25, 2021 02/25/21 Other Revised 01/13/21 American Tower Corporation (REIT) - Special Call 01/13/21 Other Revised 01/05/21 American Tower Corporation (REIT) Presents at Citi’s 2021 Global TMT West Virtual Conference, Jan-05-2021 12:00 PM 01/05/21

Other Revised 12/07/20 American Tower Corporation (REIT) Presents at UBS Global TMT Virtual Conference, Dec-07-2020 12:05 PM 12/07/20 Other Revised 11/18/20 American Tower Corporation (REIT) Presents at Nareit’s REITworld: 2020 Annual Conference, Nov-17-2020 through Nov-19-2020 11/18/20 Other Revised 11/17/20 American Tower Corporation (REIT) Presents at New Street/BCG 2020 Conference: 5G. Infrastructure. Applications. Innovation. Disruption, Nov-17-2020 09:10 AM 11/17/20 Earnings Revised 10/29/20 American Tower Corporation (REIT), Q3 2020 Earnings Call, Oct 29, 2020 10/29/20 Other Revised 09/29/20 American Tower Corporation (REIT) Presents at RBC Capital Markets Global Towers and Mobile Infrastructure Virtual Investor Day, Sep-29-2020 12:40 PM 09/29/20 Other Revised 09/16/20 American Tower Corporation (REIT) Presents at BofA Securities Global Real Estate Virtual Conference 2020, Sep-16-2020 09:00 AM 09/16/20 Other Revised 09/15/20 American Tower Corporation (REIT) Presents at Goldman Sachs 29th Annual Communacopia Conference, Sep-15-2020 11:20 AM 09/15/20 Other Revised 08/11/20 American Tower Corporation (REIT) Presents at Oppenheimer’s 23rd Annual Technology, Internet & Communications Conference, Aug-11-2020 02:40 PM 08/11/20 Other Revised 08/11/20 American Tower Corporation (REIT) Presents at Cowen and Company 6th Annual Virtual Communications Infrastructure Summit, Aug-11-2020 08:30 AM 08/11/20 Earnings Revised 07/30/20 American Tower Corporation (REIT), Q2 2020 Earnings Call, Jul 30, 2020 07/30/20 Other Revised 06/16/20 American Tower Corporation (REIT) Presents at Credit Suisse 22nd Annual Virtual Communications Conference, Jun-16-2020 11:20 AM 06/16/20 Other Revised 06/02/20 American Tower Corporation (REIT) Presents at REITweek: 2020 Virtual Investor Conference, Jun-02-2020 02:15 PM 06/02/20 Other Revised 05/18/20 American Tower Corporation (REIT) - Shareholder/Analyst Call 05/18/20 Other Revised 05/12/20 American Tower Corporation (REIT) Presents at J.P. Morgan 48th Annual Global Technology, Media & Communications Conference, May-12-2020 10:40 AM 05/12/20 Other Revised 05/11/20 American Tower Corporation (REIT) Presents at MoffettNathanson 7th Annual Media & Communications Summit, May-11-2020 03:00 PM 05/11/20 Earnings Revised 04/29/20 American Tower Corporation (REIT), Q1 2020 Earnings Call, Apr 29, 2020 04/29/20 Other Revised 03/03/20 American Tower Corporation (REIT) Presents at Morgan Stanley Technology, Media & Telecom Conference, Mar-03-2020 04:35 PM 03/03/20 Other Revised 03/03/20 American Tower Corporation (REIT) Presents at Raymond James 41st Annual Institutional Investors Conference, Mar-03-2020 01:40 PM 03/03/20 Other Revised 03/02/20 American Tower Corporation (REIT) Presents at Citi's 2020 Global Property CEO Conference, Mar-02-2020 11:40 AM 03/02/20 Earnings Revised 02/25/20 American Tower Corporation (REIT), Q4 2019 Earnings Call, Feb 25, 2020 02/25/20 Other Revised 01/07/20 American Tower Corporation (REIT) Presents at Citi 2020 Global TMT West Conference, Jan-07-2020 09:30 AM 01/07/20

Other Revised 12/10/19 American Tower Corporation (REIT) Presents at UBS Global Technology, Media & Telecom Conference, Dec-10-2019 10:00 AM 12/10/19 Earnings Revised 10/31/19 American Tower Corporation (REIT), Q3 2019 Earnings Call, Oct 31, 2019 10/31/19 Other Revised 09/17/19 American Tower Corporation (REIT) Presents at The Goldman Sachs 28th Annual Communacopia Conference, Sep-17-2019 09:40 AM 09/17/19 Other Revised 09/11/19 American Tower Corporation (REIT) Presents at Bank of America Merrill Lynch 2019 Media, Communications & Entertainment Conference, Sep-11-2019 11:15 AM 09/11/19 Other Revised 08/13/19 American Tower Corporation (REIT) Presents at Cowen Communications Infrastructure Summit 2019, Aug-13-2019 02:50 PM 08/13/19 Other Revised 08/07/19 American Tower Corporation (REIT) Presents at Oppenheimer's 22nd Annual Technology, Internet & Communications Conference, Aug-07-2019 12:25 PM 08/07/19 Earnings Revised 07/31/19 American Tower Corporation (REIT), Q2 2019 Earnings Call, Jul 31, 2019 07/31/19 Other Revised 06/04/19 American Tower Corporation (REIT) Presents at NAREIT's REITweek: 2019 Investor Conference, Jun-04-2019 11:45 AM 06/04/19 Other Revised 05/15/19 American Tower Corporation (REIT) Presents at MoffettNathanson Media and Communications Summit, May-15-2019 09:00 AM 05/15/19 Other Revised 05/14/19 American Tower Corporation (REIT) Presents at J.P. Morgan Global Technology, Media & Communications Conference, May-14-2019 11:20 AM 05/14/19 Earnings Revised 05/03/19 American Tower Corporation (REIT), Q1 2019 Earnings Call, May 03, 2019 05/03/19 Other Revised 03/12/19 American Tower Corporation (REIT) Presents at Deutsche Bank 27th Annual Media, Internet & Telecom Conference, Mar-12-2019 10:35 AM 03/12/19 Other Revised 03/04/19 American Tower Corporation (REIT) Presents at Raymond James 40th Annual Institutional Investors Conference, Mar-04-2019 11:35 AM 03/04/19 Earnings Revised 02/27/19 American Tower Corporation (REIT), Q4 2018 Earnings Call, Feb 27, 2019 02/27/19 Other Revised 01/09/19 American Tower Corporation (REIT) Presents at Citi’s 2019 Global TMT West Conference, Jan-09-2019 08:45 AM 01/09/19

Other Revised 12/04/18 American Tower Corporation (REIT) Presents at 46th Annual Global Media and Communications Conference, Dec-04-2018 02:30 PM 12/04/18 Earnings Revised 10/30/18 American Tower Corporation (REIT), Q3 2018 Earnings Call, Oct 30, 2018 10/30/18 Other Revised 09/13/18 American Tower Corporation (REIT) Presents at Goldman Sachs 27th Annual Communacopia Conference, Sep-13-2018 09:40 AM 09/13/18 Other Revised 08/08/18 American Tower Corporation (REIT) Presents at Oppenheimer 21st Annual Technology, Internet & Communications Conference, Aug-08-2018 12:25 PM 08/08/18 Other Revised 08/07/18 American Tower Corporation (REIT) Presents at 4th Annual Communications Infrastructure Summit, Aug-07-2018 10:55 AM 08/07/18 Earnings Revised 07/31/18 American Tower Corporation (REIT), Q2 2018 Earnings Call, Jul 31, 2018 07/31/18 Other Revised 06/06/18 American Tower Corporation (REIT) Presents at NAREIT REITweek: 2018 Investor Conference, Jun-06-2018 09:30 AM 06/06/18 Other Revised 06/06/18 American Tower Corporation (REIT) Presents at Bank of America Merrill Lynch Global TMT Conference 2018, Jun-06-2018 08:20 AM 06/06/18 Other Revised 05/30/18 American Tower Corporation (REIT) Presents at Cowen and Company 46th Annual Technology, Media and Telecom Conference, May-30-2018 03:55 PM 05/30/18 Other Revised 05/15/18 American Tower Corporation (REIT) Presents at 46th Annual J.P. Morgan Global Technology, Media and Communications Conference, May-15-2018 11:20 AM 05/15/18 Earnings Revised 05/01/18 American Tower Corporation (REIT), Q1 2018 Earnings Call, May 01, 2018 05/01/18 Other Revised 03/06/18 American Tower Corporation (REIT) Presents at Raymond James 39th Annual Institutional Investors Conference, Mar-06-2018 11:35 AM 03/06/18 Other Revised 03/05/18 American Tower Corporation (REIT) Presents at 26th Annual Media, Telecom & Business Services Conference, Mar-05-2018 01:40 PM 03/05/18 Other Revised 03/05/18 American Tower Corporation (REIT) Presents at The 2018 Citi Global Property CEO Conference, Mar-05-2018 10:15 AM 03/05/18 Earnings Revised 02/27/18 American Tower Corporation (REIT), Q4 2017 Earnings Call, Feb 27, 2018 02/27/18 Other Revised 01/09/18 American Tower Corporation (REIT) Presents at Citi 2018 Global TMT West Conference, Jan-09-2018 10:15 AM 01/09/18

Other Revised 12/04/17 American Tower Corporation (REIT) Presents at UBS 45th Annual Global Media and Communications Conference, Dec-04-2017 11:00 AM 12/04/17 Other Revised 11/15/17 American Tower Corporation (REIT) Presents at Morgan Stanley European Technology, Media & Telecom Conference, Nov-15-2017 09:45 AM 11/15/17 Other Revised 11/08/17 American Tower Corporation Presents at Wells Fargo Technology, Media & Telecom Conference 2017, Nov-08-2017 01:35 PM 11/08/17 Earnings Revised 10/31/17 American Tower Corporation, Q3 2017 Earnings Call, Oct 31, 2017 10/31/17 Other Revised 09/13/17 American Tower Corporation Presents at Goldman Sachs's 26th Annual Communacopia Conference, Sep-13-2017 09:40 AM 09/13/17 Other Revised 08/08/17 American Tower Corporation Presents at Cowen and Company 3rd Annual Communications Infrastructure Summit, Aug-08-2017 12:25 PM 08/08/17 Other Revised 08/08/17 American Tower Corporation Presents at Oppenheimer 20th Annual Technology, Internet & Communications Conference, Aug-08-2017 12:25 PM 08/08/17 Earnings Revised 07/27/17 American Tower Corporation, Q2 2017 Earnings Call, Jul 27, 2017 07/27/17 Other Revised 06/07/17 American Tower Corporation Presents at NAREIT's REITWeek Investor Forum, Jun-07-2017 02:00 PM 06/07/17 Other Revised 05/22/17 American Tower Corporation Presents at 45th Annual J.P. Morgan Global Technology, Media and Telecom Conference, May-22-2017 08:40 AM 05/22/17 Earnings Revised 04/27/17 American Tower Corporation, Q1 2017 Earnings Call, Apr 27, 2017 04/27/17 Other Revised 03/07/17 American Tower Corporation Presents at The Raymond James 38th Annual Institutional Investors Conference 2017, Mar-07-2017 09:15 AM 03/07/17 Other Revised 03/06/17 American Tower Corporation Presents at Citi Global Property CEO Conference 2017, Mar-06-2017 10:55 AM 03/06/17 Other Revised 03/06/17 American Tower Corporation Presents at Deutsche Bank 25th Annual Media & Telecom Conference, Mar-06-2017 09:45 AM 03/06/17 Other Revised 03/01/17 American Tower Corporation Presents at Morgan Stanley 2017 Technology, Media & Telecom Conference, Mar-01-2017 02:15 PM 03/01/17 Earnings Revised 02/27/17 American Tower Corporation, Q4 2016 Earnings Call, Feb 27, 2017 02/27/17 Other Revised 01/05/17 American Tower Corporation Presents at Citi 2017 Global Internet, Media & Telecommunications Conference, Jan-05-2017 08:45 AM 01/05/17

Other Revised 12/07/16 American Tower Corporation Presents at UBS 44th Annual Global Media and Communications Conference 2016, Dec-07-2016 09:30 AM 12/07/16 Earnings Revised 10/27/16 American Tower Corporation, Q3 2016 Earnings Call, Oct 27, 2016 10/27/16 Other Revised 09/21/16 American Tower Corporation Presents at Goldman Sachs Communacopia 2016, Sep-21-2016 10:30 AM 09/21/16 Earnings Revised 07/28/16 American Tower Corporation, Q2 2016 Earnings Call, Jul 28, 2016 07/28/16 Other Revised 06/07/16 American Tower Corporation Presents at Bank of America Merrill Lynch Global Telecom & Media Conference 2016, Jun-07-2016 02:25 PM 06/07/16 Other Revised 05/25/16 American Tower Corporation Presents at 44th Annual J.P. Morgan Global Technology, Media and Telecom Conference, May-25-2016 08:00 AM 05/25/16 Earnings Revised 04/29/16 American Tower Corporation, Q1 2016 Earnings Call, Apr 29, 2016 04/29/16 Other Revised 03/15/16 American Tower Corporation Presents at Citigroup Global Property CEO Conference, Mar-15-2016 10:10 AM 03/15/16 Other Revised 03/07/16 American Tower Corporation Presents at 2016 Deutsche Bank Securities 24th Annual Media, Internet & Telecom Conference, Mar-07-2016 02:45 PM 03/07/16 Other Revised 03/02/16 American Tower Corporation Presents at Morgan Stanley Technology, Media & Telecom Conference, Mar-02-2016 01:55 PM 03/02/16 Earnings Revised 02/26/16 American Tower Corporation, Q4 2015 Earnings Call, Feb 26, 2016 02/26/16 Other Revised 01/07/16 American Tower Corporation Presents at Citi Global Internet, Media and Telecommunications Conference, Jan-07-2016 08:00 AM 01/07/16

Other Revised 12/10/15 American Tower Corporation - Analyst/Investor Day 12/10/15 Other Revised 12/08/15 American Tower Corporation Presents at UBS 43rd Annual Global Media and Communications Conference 2015, Dec-08-2015 10:45 AM 12/08/15 Other Revised 11/12/15 American Tower Corporation Presents at Morgan Stanley European Technology, Media & Telecoms Conference, Nov-12-2015 06:15 PM 11/12/15 Earnings Revised 10/30/15 American Tower Corporation, Q3 2015 Earnings Call, Oct 30, 2015 10/30/15 Other Revised 09/17/15 American Tower Corporation Presents at Goldman Sachs 24th Annual Communacopia Conference, Sep-17-2015 11:20 AM 09/17/15 Other Revised 08/11/15 American Tower Corporation Presents at Oppenheimer 18th Annual Technology, Internet & Communications Conference 2015, Aug-11-2015 11:05 AM 08/11/15 Earnings Revised 07/29/15 American Tower Corporation, Q2 2015 Earnings Call, Jul 29, 2015 07/29/15 Other Revised 06/10/15 American Tower Corporation Presents at REITWEEK 2015: NAREIT's Investor Forum, Jun-10-2015 10:15 AM 06/10/15 Other Revised 05/18/15 American Tower Corporation Presents at 43rd Annual J.P. Morgan Global Technology, Media and Telecom Conference, May-18-2015 02:10 PM 05/18/15 Earnings Revised 04/30/15 American Tower Corporation, Q1 2015 Earnings Call, Apr 30, 2015 04/30/15 Other Revised 03/09/15 American Tower Corporation Presents at Deutsche Bank 23rd Annual Media, Internet and Telecom Conference, Mar-09-2015 02:10 PM 03/09/15 Other Revised 03/02/15 American Tower Corporation Presents at Citl's 2015 Global Property CEO Conference, Mar-02-2015 01:35 PM 03/02/15 Earnings Revised 02/24/15 American Tower Corporation, Q4 2014 Earnings Call, Feb 24, 2015 02/24/15 Other Revised 02/06/15 American Tower Corporation - Special Call 02/06/15 Other Revised 01/06/15 American Tower Corporation Presents at Citi 25th Annual Global Internet, Media and Telecom Conference 2015, Jan-06-2015 12:30 PM 01/06/15

Other Revised 12/10/14 American Tower Corporation Presents at UBS 42nd Annual Global Media and Communications Conference, Dec-10-2014 09:00 AM 12/10/14 Other Revised 11/21/14 American Tower Corporation Presents at Morgan Stanley 14th Annual European Technology, Media & Telecom Conference, Nov-21-2014 08:05 AM 11/21/14 Earnings Revised 10/30/14 American Tower Corporation, Q3 2014 Earnings Call, Oct 30, 2014 10/30/14 Other Revised 09/16/14 American Tower Corporation Presents at Bank of America Merrill Lynch Media, Communications & Entertainment Conference 2014, Sep-16-2014 02:20 PM 09/16/14 Other Revised 09/12/14 American Tower Corporation Presents at UBS Best of Americas Conference 2014, Sep-12-2014 12:00 PM 09/12/14 Other Revised 09/11/14 American Tower Corporation Presents at Goldman Sachs 23rd Annual Communacopia Conference, Sep-11-2014 01:15 PM 09/11/14 Earnings Revised 07/30/14 American Tower Corporation, Q2 2014 Earnings Call, Jul 30, 2014 07/30/14 Other Revised 05/19/14 American Tower Corporation Presents at J.P. Morgan Global Technology, Media & Telecom Conference, May-19-2014 01:00 PM 05/19/14 Earnings Revised 05/01/14 American Tower Corporation, Q1 2014 Earnings Call, May 01, 2014 05/01/14 Other Revised 03/10/14 American Tower Corporation Presents at Deutsche Bank 22nd Annual Media, Internet and Telecom Conference, Mar-10-2014 03:00 PM 03/10/14 Other Revised 03/03/14 American Tower Corporation Presents at Morgan Stanley Technology, Media and Telecom Conference, Mar-03-2014 01:20 PM 03/03/14 Other Revised 03/03/14 American Tower Corporation Presents at Citi 2014 Global Property CEO Conference, Mar-03-2014 01:35 PM 03/03/14 Earnings Revised 02/25/14 American Tower Corporation, Q4 2013 Earnings Call, Feb 25, 2014 02/25/14 Other Revised 01/08/14 American Tower Corporation Presents at Citi 2014 Global Internet, Media & Telecommunications Conference, Jan-08-2014 07:30 AM 01/08/14

Earnings Revised 10/30/13 American Tower Corporation, Q3 2013 Earnings Call, Oct 30, 2013 10/30/13 Other Revised 09/25/13 American Tower Corporation Presents at Goldman Sachs 22nd Annual Communacopia Conference, Sep-25-2013 02:55 PM 09/25/13 Other Revised 09/12/13 American Tower Corporation Presents at UBS Best of Americas Conference, Sep-12-2013 02:50 PM 09/12/13 Other Revised 09/06/13 American Tower Corporation, MIP Tower Holdings LLC - M&A Call 09/06/13 Earnings Revised 07/31/13 American Tower Corporation, Q2 2013 Earnings Call, Jul 31, 2013 07/31/13 Other Revised 05/16/13 American Tower Corporation Presents at JPMorgan Chase & Co.'s 41st Annual Global Technology, Media and Telecom Conference, May-16-2013 08:40 AM 05/16/13 Earnings Revised 05/01/13 American Tower Corporation, Q1 2013 Earnings Call, May 01, 2013 05/01/13 Other Revised 03/04/13 American Tower Corporation Presents at Deutsche Bank's DbAccess 21st Annual Media and Telecom Conference, Mar-04-2013 09:30 AM 03/04/13 Earnings Revised 02/26/13 American Tower Corporation, Q4 2012 Earnings Call, Feb 26, 2013 02/26/13 Other Revised 01/08/13 American Tower Corporation Presents at Citigroup Global Internet, Media & Telecommunications Conference, Jan-08-2013 08:15 AM 01/08/13

Earnings Revised 10/31/12 American Tower Corporation, Q3 2012 Earnings Call, Oct 31, 2012 10/31/12 Other Revised 09/20/12 American Tower Corporation Presents at Goldman Sachs' 21st Annual Communacopia Conference, Sep-20-2012 01:15 PM 09/20/12 Other Revised 09/13/12 American Tower Corporation Presents at BofA Merrill Lynch 2012 Media, Communications and Entertainment Conference, Sep-13-2012 10:30 AM 09/13/12 Earnings Revised 08/01/12 American Tower Corporation, Q2 2012 Earnings Call, Aug 01, 2012 08/01/12 Other Revised 05/16/12 American Tower Corp. Presents at JPMorgan's 40th Annual Global Technology, Media and Telecom Conference, May-16-2012 08:00 AM 05/16/12 Earnings Revised 05/03/12 American Tower Corporation, Q1 2012 Earnings Call, May 03, 2012 05/03/12 Other Revised 02/29/12 American Tower Corp. Presents at Deutsche Bank Securities 20th Annual Media and Telecom Conference, Feb-29-2012 10:20 AM 02/29/12 Earnings Revised 02/23/12 American Tower Corp., Q4 2011 Earnings Call, Feb 23, 2012 02/23/12 Other Revised 01/04/12 American Tower Corp. Presents at Citi Global Entertainment, Media & Telecommunications Conference, Jan-04-2012 09:00 AM 01/04/12

Other Revised 12/05/11 American Tower Corp. Presents at The UBS 39th Annual Global Media and Communications Conference, Dec-05-2011 02:30 PM 12/05/11 Earnings Revised 11/01/11 American Tower Corp., Q3 2011 Earnings Call, Nov 01, 2011 11/01/11 Earnings Revised 08/02/11 American Tower Corp., Q2 2011 Earnings Call, Aug 02, 2011 08/02/11 Other Revised 05/16/11 American Tower Corp. Presents at J.P. Morgan 39th Annual Global Technology, Media and Telecom (TMT) Conference, May-16-2011 09:20 AM 05/16/11 Earnings Revised 05/03/11 American Tower Corp., Q1 2011 Earnings Call, May 03, 2011 05/03/11 Earnings Revised 02/23/11 American Tower Corp., Q4 2010 Earnings Call, Feb 23, 2011 02/23/11

Earnings Revised 11/05/10 American Tower Corp., Q3 2010 Earnings Call, Nov 05, 2010 11/05/10 Earnings Revised 08/03/10 American Tower Corp., Q2 2010 Earnings Call, Aug-03-2010 08/03/10 Earnings Revised 05/04/10 American Tower Corp., Q1 2010 Earnings Call, May 04, 2010 05/04/10 Earnings Revised 02/24/10 American Tower Corp., Q4 2009 Earnings Call, Feb 24, 2010 02/24/10

Earnings Revised 11/03/09 American Tower Corp., Q3 2009 Earnings Call, Nov-03-2009 11/03/09 Earnings Revised 07/29/09 American Tower Corp., Q2 2009 Earnings Call, Jul-29-2009 07/29/09 Earnings Revised 04/29/09 American Tower Corp., Q1 2009 Earnings Call, Apr-29-2009 04/29/09 Earnings Revised 02/26/09 American Tower Corp., Q4 2008 Earnings Call, Feb-26-2009 02/26/09

Earnings Revised 11/03/08 American Tower Corp., Q3 2008 Earnings Call, Nov-03-2008 11/03/08 Earnings Revised 07/30/08 American Tower Corp., Q2 2008 Earnings Call, Jul-30-2008 07/30/08 Earnings Revised 05/02/08 American Tower Corp., Q1 2008 Earnings Call, May-02-2008 05/02/08

Earnings Revised 11/07/07 American Tower Corp., Q3 2007 Earnings Call, Nov-07-2007 11/07/07 Earnings Revised 08/02/07 American Tower Corp., Q2 2007 Earnings Call, Aug-02-2007 08/02/07