ARRAY DIGITAL INFRASTRUCTURE, INC.

Array Digital Infrastructure, Inc. owns and operates wireless communications infrastructure across the United States, primarily through a portfolio of approximately 4,400 cell towers. The company deploys 5G and other wireless technologies and generates revenue by leasing tower space to multiple tenants, including wireless carriers, internet service providers, and broadband operators. The company also provides ancillary services related to its tower infrastructure operations.

The business serves a diverse customer base spanning private sector wireless carriers, government agencies, municipalities, and various broadband providers. Tower leasing represents the core revenue stream, with customers typically entering into long-term agreements for equipment placement and connectivity access. The company operates across the continental United States, maintaining a geographically distributed asset base.

Array Digital Infrastructure operates with approximately 4,100 full-time employees and is headquartered in Chicago, Illinois. The company was incorporated in 1983 and operates as a subsidiary of Telephone and Data Systems, Inc. In August 2025, the company changed its name from United States Cellular Corporation to Array Digital Infrastructure, Inc., reflecting a strategic shift toward infrastructure-focused operations.