American Tower

American Tower is a global real estate investment trust (REIT) that owns, operates, and develops multi-tenant communications infrastructure used by Mobile Network Operators (MNOs), broadband providers, broadcasters, utilities, enterprises, and public sector entities.

• Global portfolio of wireless and broadcast communications sites, including macro towers, rooftop sites, and related passive infrastructure (communications infrastructure)
• Colocation services for MNOs and other tenants on shared tower and site assets (infrastructure colocation)
• Indoor wireless and in-building solutions for venues, campuses, and enterprise facilities (indoor connectivity)
• Edge and data center facilities in select markets to support low-latency and distributed compute workloads (edge data infrastructure)
• Site development, deployment support, and infrastructure management services for network expansion and modernization programs (network deployment services)

More About American Tower

American Tower structures its offerings around shared communications infrastructure that can host multiple tenants, with a focus on macro towers, rooftop sites, and related support assets. MNOs and broadband providers use these sites to mount antennas, radios, and other Radio Access Network (RAN) components to extend coverage and capacity for 3G, 4G, and 5G mobile services. The company operates as a neutral host, providing passive infrastructure such as towers, power, and physical security, while tenants own and manage active network equipment.

In enterprise and institutional environments, American Tower supports indoor and campus connectivity through distributed antenna systems and other in-building wireless solutions (indoor connectivity). These deployments are used in venues such as office buildings, hospitals, universities, transportation hubs, and stadiums to provide consistent cellular coverage and capacity. Architectures typically integrate with mobile operators’ core networks and may use fiber backhaul, structured cabling, and head-end equipment located in telecom rooms or intermediate distribution frames.

American Tower also offers edge and data center facilities (edge data infrastructure) in certain regions, providing space, power, and environmental controls for customers that need to host compute, storage, and networking equipment closer to end users or network endpoints. These sites are generally carrier-neutral and interconnect with multiple networks, aligning with distributed and low-latency architectures such as Mobile Edge Computing (MEC) and Content Delivery Network (CDN) deployments.

From a technology perspective, American Tower’s infrastructure is designed to support standard wireless communication protocols and technologies, including Long Term Evolution (LTE) and 5G New Radio (NR) in a range of licensed and shared spectrum bands. Its sites commonly integrate with fiber and microwave backhaul networks, and with operators’ core network architectures based on 3rd Generation Partnership Project (3GPP) standards. The company’s role is focused on the physical and power layers of the stack, while customers manage RAN software, spectrum, and Traffic Engineering (TE).

For directory and taxonomy purposes, American Tower fits into several enterprise-relevant categories: communications infrastructure REIT, mobile network infrastructure, tower and rooftop colocation (infrastructure colocation), indoor wireless and in-building systems (indoor connectivity), and edge and data center hosting (edge data infrastructure). Its assets are used by telecom carriers, Internet Service Providers (ISP), broadcasters, utilities, and enterprises that require geographically distributed, carrier-neutral physical infrastructure for wireless and data services.