ARRAY DIGITAL INFRASTRUCTURE, INC.

Array Digital Infrastructure, Inc. (NYSE: AD) operates as a tower owner and operator of shared wireless communications infrastructure across the United States. The company's website is www.arrayinc.com. As of December 31, 2025, Array owns 4,450 towers located in 19 states, primarily concentrated in New England, the Mid-Atlantic, the Midwest and Great Plains, and the Pacific Northwest. The company ranks as the fifth largest tower owner and operator in the nation.

Array's core business involves leasing tower space to wireless carriers and other tenants who install network equipment on Array's communications infrastructure. The company's largest tenants include T-Mobile, AT&T, and Verizon. Array's tower portfolio consists of monopole, self-support lattice, and guyed towers with an average height of 260 feet, ranging from 60 to 600 feet. Approximately 82 percent of towers are located on leased land, with over 65 percent of leased towers having expiration dates ten or more years in the future. Approximately 18 percent of the portfolio sits on deeded land or land with perpetual easements.

On August 1, 2025, Array completed the sale of its wireless operations and select spectrum assets to T-Mobile US, Inc. for total consideration of $4,293.8 million, consisting of $2,628.8 million in cash proceeds and $1,665.0 million in debt assumed by T-Mobile. Following this transaction, Array entered into a Master License Agreement with T-Mobile providing for a minimum 15-year lease term on certain towers. Array also holds noncontrolling interests in wireless operating companies and retains certain wireless spectrum licenses subject to pending sale agreements with Verizon and T-Mobile.

Array's revenue model is characterized by long-term Master License Agreements with major carriers that establish defined lease terms and fixed annual escalators. The company experiences limited tenant churn and high lease renewal rates due to the substantial costs tenants incur to relocate. Direct tower operations costs consist primarily of ground rent, tower maintenance, utilities, property taxes, and property insurance. As of December 31, 2025, Array employed approximately 60 full-time and part-time associates. Array is an 82 percent-owned subsidiary of Telephone and Data Systems, Inc.