Exhibit 12 TELEPHONE AND DATA SYSTEMS, INC. RATIOS OF EARNINGS TO FIXED CHARGES For the Three Months ended March 31, 2000 (Dollars In Thousands) EARNINGS: Income from Continuing Operations before income taxes $ 72,307 Add (Deduct): Minority Share of Losses (96) Earnings on Equity Method (1,658) Distributions from Minority Subsidiaries 5,827 Minority interest in majority-owned subsidiaries that have fixed charges 9,244 ---------- 85,624 Add fixed charges: Consolidated interest expense 29,032 Interest Portion (1/3) of Consolidated Rent Expense 3,819 ---------- $ 118,475 ========== FIXED CHARGES: Consolidated interest expense $ 29,032 Interest Portion (1/3) of Consolidated Rent Expense 3,819 ---------- $ 32,851 ========== RATIO OF EARNINGS TO FIXED CHARGES 3.61 ========== Tax-Effected Redeemable Preferred Dividends $ 21 Fixed Charges 32,851 ---------- Fixed Charges and Redeemable Preferred Dividends $ 32,872 RATIO OF EARNINGS TO FIXED CHARGES ========== AND REDEEMABLE PREFERRED DIVIDENDS 3.60 ========== Tax-Effected Preferred Dividends $ 226 Fixed Charges 32,851 ---------- Fixed Charges and Preferred Dividends $ 33,077 ========== RATIO OF EARNINGS TO FIXED CHARGES AND PREFERRED DIVIDENDS 3.58 ==========