Founded in 1995, American Tower is a leading independent owner, operator and developer of wireless and broadcast communications real estate, with a portfolio of approximately 68,000 properties, including wireless towers, broadcast towers and Distributed Antenna System (DAS) networks.
Our tower portfolio consists of those that we own and those that we operate pursuant to long-term lease arrangements, including, as of March 31, 2014, nearly 28,000 towers in the United States and about 40,000 towers internationally in Brazil, Chile, Colombia, Costa Rica, Germany, Ghana, India, Mexico, Panama, Peru, South Africa and Uganda. Our portfolio also includes over 360 DAS networks that we operate in malls, casinos, other in-building applications and select outdoor environments.
Our primary business is leasing antenna space on multiple-tenant communications sites to wireless service providers, radio and television broadcast companies, wireless data providers, government agencies and municipalities and tenants in a number of other industries. In addition to the communications sites in our portfolio, we manage rooftop and communications sites for property owners. We also offer site-related services domestically, including site acquisition, zoning and permitting services and structural analysis services, which primarily support our site leasing business and the addition of new tenants and equipment on our sites. We also hold property interests that we lease to communications service providers and third-party tower operators.