ARRAY DIGITAL INFRASTRUCTURE, INC.

Array Digital Infrastructure, Inc. (Array) connects America through digital infrastructure by leasing tower space to tenants and providing ancillary services. As of December 31, 2025, Array owns 4,450 towers in 19 states. Array also holds noncontrolling interests in primarily wireless operating companies and holds certain wireless spectrum licenses. As of December 31, 2025, Array is an 82.0%-owned subsidiary of Telephone and Data Systems, Inc. (TDS). Array is the fifth largest tower owner and operator of shared wireless communications infrastructure in the United States. With 4,450 cell towers, Array enables the deployment of 5G and other wireless technologies throughout the country. Array has owned and operated towers for over 40 years. Array's strategy is to drive increased colocation on its portfolio of unique tower locations and support the delivery of connectivity to the communities in which it operates. Array's tenants lease space on Array's communications infrastructure, installing network equipment on Array tower structures. Revenues vary by tenant and are dependent on numerous factors, such as quantity of installed equipment, location of installed equipment on the tower structure and tower location, amongst others. Array has entered into long-term Master License Agreements (MLAs) with its largest customers, which ensures a defined lease term and defined lease escalators. On August 1, 2025, United States Cellular Corporation changed its name to Array Digital Infrastructure, Inc. On August 12, 2025, the Array Common Shares ticker symbol on the New York Stock Exchange changed to "AD". Through July 31, 2025, Array provided wireless communication services; these operations and certain wireless spectrum licenses were disposed of on August 1, 2025.