Exhibit 23
BDO USA, P.C.
Consent of Independent Registered Public Accounting Firm
Telephone and Data Systems, Inc. Tax-Deferred Savings Plan
Madison, Wisconsin
We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-266692) of Telephone and Data Systems, Inc. and on Form S-8 (No. 333-266693) of United States Cellular Corporation of our report dated May 31, 2024, relating to the financial statements and supplemental schedule of Telephone and Data Systems, Inc. Tax-Deferred Savings Plan which appear in this Form 11-K for the year ended December 31, 2023.
/s/ BDO USA, P.C.
Madison, Wisconsin
May 31, 2024