American Tower is a global real estate investment trust that owns, operates and develops multitenant communications real estate. Its core activity is leasing space on communications sites—towers it owns or holds under long-term lease arrangements, plus distributed antenna system networks—to wireless carriers, radio and television broadcasters, wireless data providers, government agencies, municipalities and others. In the United States it also provides tower-related services such as site applications, zoning and permitting, structural and mount analyses, and construction management. It holds a portfolio of interconnected data centre facilities as well.
Revenue comes mainly from tenant leases, which typically run for five to ten years with periodic rent escalations; in many international markets tenants also reimburse costs such as ground rent, power and fuel. Its customers include tenants, licensees and other payers, with major carriers such as AT&T, T-Mobile, Verizon, Airtel, MTN and Telefónica.
The company reports in six segments: U.S. & Canada, Africa & APAC, Europe and Latin America property, plus Data Centers and Services. As of December 2025 it held 149,686 communications sites worldwide and 30 data centre facilities across eleven US markets.
Based on American Tower's 10-K filed February 24, 2026.