Array Digital Infrastructure is the fifth-largest cell tower owner and operator in the United States, owning and operating thousands of wireless communications towers across multiple states that it leases to major wireless carriers and other communications companies including T-Mobile, AT&T, and Verizon. The company generates revenue primarily through long-term lease agreements with these tenants, who install network equipment on Array's tower structures; revenues depend on factors such as equipment quantity, installation location, and tower geography, while the company benefits from long-term master license agreements with major customers and high renewal rates due to the high switching costs for tenants. Array's business model centers on tower operations and ground lease management, with costs including ground rent, maintenance, utilities, property taxes, and insurance, and the company has positioned itself for growth through colocation expansion by leveraging its legacy lower tenancy rates and competitive tower locations to attract additional customers.