American Tower Corp. operates as a developer of wireless and broadcast communications real estate, which is engaged in leasing antenna space on multi-tenant communications sites to different providers. It operates business through three segments: Domestic Rental and Management, International Rental and Management and Network Development Services. The Domestic Rental and Management segment provides for the leasing of antenna space on multi-tenant communications sites to wireless service providers and radio and television broadcast companies in the United States. The International Rental and Management segment supply for the leasing of antenna space on multi-tenant communications sites to wireless service providers and radio and television broadcast companies in Brazil, Chile, Colombia, India, Ghana, Mexico, Peru and South Africa. The Network Development Services segment offers tower-related services domestically, including site acquisition, zoning and permitting services and structural