v3.26.1
Schedule H, Line 4i - Schedule of Assets (Held at End of Year) (Tables)
 12 Months Ended
Dec. 31, 2025
EBP 003  
EBP, Schedule of Asset Held for Investment [Line Items]  
Schedule H, Line 4i - Schedule of Assets (Held at End of Year)
Telephone and Data Systems, Inc.
Tax-Deferred Savings Plan
Schedule H, Line 4i - Schedule of Assets (Held at End of Year)
Plan 003 EIN 36-2669023
December 31, 2025
(Dollars in thousands)
    
(a)(b)(c)(d)(e)
Identity of Issue, Borrower, Lessor, or Similar PartyDescription of Investment Including Maturity Date,
Rate of Interest, Collateral, Par or Maturity Value		CostCurrent Value
 Common/Collective Trusts    
 Vanguard Retirement Savings Trust II**$95,793 
VanguardTarget Retirement Income and Growth Trust I**3,348 
 VanguardTarget Retirement Income Trust I **11,368 
 Vanguard Target 2020 Retirement Trust I **11,862 
 VanguardTarget 2025 Retirement Trust I **33,623 
 VanguardTarget 2030 Retirement Trust I**64,635 
 VanguardTarget 2035 Retirement Trust I **83,615 
 VanguardTarget 2040 Retirement Trust I **75,220 
 Vanguard Target 2045 Retirement Trust I **88,822 
 Vanguard Target 2050 Retirement Trust I **80,277 
 VanguardTarget 2055 Retirement Trust I **47,991 
 VanguardTarget 2060 Retirement Trust I **24,422 
Vanguard Target 2065 Retirement Trust I **8,404 
VanguardTarget 2070 Retirement Trust I**2,616 
VanguardInstitutional 500 Index Trust**226,315 
VanguardInstitutional Total International Stock Market Index Trust**150,039 
*BlackRockIntermediate Government/Credit Bond Index Fund F**94,536 
Total Common/Collective Trusts1,102,886 
 Common Stock of Plan Sponsor and Subsidiary  
*Telephone and Data Systems, Inc.Common Stock Fund**13,762 
*Array Digital Infrastructure, Inc.Common Stock Fund**10,586 
Total Common Stock of Plan Sponsor and Subsidiary24,348 
 Mutual Funds   
 Vanguard Small Cap Value Index Fund**68,628 
 Vanguard Value Index Fund**96,337 
 Vanguard Small Cap Growth Index Fund**59,080 
 Vanguard Growth Index Fund**227,787 
*Northern Institutional Funds U.S. Government Select Portfolio**110 
Total Mutual Funds451,942 
*Participant Loans
Interest rates range from 4.25% to 9.50%, maturing through December 2030
8,139 
   $1,587,315 
* Represents a party-in-interest, as defined by ERISA.  
** The cost of participant-directed investments is not required to be disclosed.