Market Risk As of June 30, 2026, approximately 50% of TDS' long-term debt was in fixed-rate senior notes and approximately 50% in variable-rate debt. Fluctuations in market interest rates can lead to volatility in the fair value of fixed-rate notes and interest expense on variable-rate debt. The following table presents the scheduled principal payments on long-term debt, lease obligations, and the related weighted average interest rates by maturity dates at June 30, 2026. Principal Payments Due by Period Long-Term Debt and Lease Obligations1 Weighted-Avg. Interest Rates on Long-Term Debt Obligations2 (Dollars in thousands) Remainder of 2026 $ 4,760 6.2 % 2027 9,074 6.2 % 2028 8,566 6.1 % 2029 12,647 6.1 % 2030 293,105 6.2 % Thereafter 365,986 5.9 % Total $ 694,138 6.0 % 1The total long-term debt obligation differs from Long-term debt in the Consolidated Balance Sheet due to unamortized debt issuance costs on all non-revolving debt instruments and unamortized discounts related to Array's 6.7% Senior Notes. 2Represents the weighted average stated interest rates at June 30, 2026, for debt maturing in the respective periods. See Note 4 — Fair Value Measurements in the Notes to Consolidated Financial Statements for additional information related to the fair value of TDS’ Long-term debt as of June 30, 2026. 32 Table of Contents