Telephone and Data Systems, Inc. announced that on March 10, 2026, Joseph R. Hanley, Senior Vice President Strategy and Corporate Development of Telephone and Data Systems, Inc. notified Telephone and Data Systems, Inc. of his intention to retire from his employment with Telephone and Data Systems, Inc., effective July 1, 2026, or such other date as may be mutually agreed upon by Mr. Hanley and Telephone and Data Systems, Inc.