United States Cellular Corporation (NYSE: UZA) is the issuer of the 6.95% Senior Notes due 2060, with the parent entity, formerly known as United States Cellular Corporation and rebranded as Array Digital Infrastructure, Inc. (NYSE: AD) in August 2025 following the sale of its wireless operations to T-Mobile US, Inc. for approximately $4.4 billion; Array Digital Infrastructure owns and operates over 4,400 communications towers across the United States, providing shared wireless infrastructure including master lease agreements with major carriers such as T-Mobile, AT&T, and Verizon for colocation and deployment of 5G and other wireless technologies; it also retains noncontrolling investment interests and certain wireless spectrum assets, serving wireless carriers, government agencies, municipalities, wireless internet service providers, and broadband providers through leasing, engineering, and site management services. The company, founded in 1983 as a subsidiary of Telephone and Data Systems, Inc. (NYSE: TDS), which holds a majority ownership, is headquartered in Chicago, Illinois, and focuses on tower portfolio management with recent expansions including new master lease agreements with T-Mobile for 2,015 incremental towers and extensions on 600 existing sites, alongside spectrum sales to AT&T for $1.018 billion announced in November 2024 and ongoing network investments such as cell site additions in Nebraska funded by universal service programs. Recent strategic shifts encompass leadership changes with Anthony serving as President and CEO since November 2025, completion of the T-Mobile transaction on August 1, 2025 enabling a pivot to pure-play digital infrastructure, issuance and exchange of senior notes including 5.500% notes due 2033, 2069, and 2070, and initiation of a special cash dividend of $22.50 to $23.75 per share post-sale closing.