Telephone & Data Systems Inc. TDS

What this company does

Telephone and Data Systems, Inc. provides communications services to customers through its wholly-owned subsidiary TDS Telecom, serving 1.1 million broadband, video, voice and wireless connections as of December 31, 2025. It also leases tower space to tenants and provides ancillary services, holds noncontrolling interests in wireless operating companies, and holds wireless spectrum licenses through its majority-owned subsidiary Array Digital Infrastructure, Inc. TDS had approximately 4,000 full-time and part-time associates as of December 31, 2025. TDS has two reportable segments, TDS Telecom and Array, and its operations also include its wholly-owned subsidiary Suttle-Straus, Inc. TDS Telecom provides communications services in 30 states through its fiber, coaxial and copper networks, operating in one reportable segment across small to mid-sized urban, suburban and rural communities in the United States. Array leases tower space to tenants and provides ancillary services, and owned 4,450 towers in 19 states as of December 31, 2025. United States Cellular Corporation changed its name to Array Digital Infrastructure, Inc. on August 1, 2025.

Written from the business description in TELEPHONE AND DATA SYSTEMS, INC.'s annual report to the U.S. Securities and Exchange Commission, filed 24 February 2026. Every sentence was checked against that document before publication.