1 EXHIBIT 12.1 PHONETEL TECHNOLOGIES, INC. COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES Year Ended December 31, 1995 Nine Months Ended September 30 Pro Forma for 1995 and 1996 Pro Forma for Acquisitions, 1995 and 1996 Pending Acquisitions, Acquisitions, Year Ended December 31 Concurrent Concurrent ---------------------------------- Offering and Offering and 1993 1994 1995 Offering Offering 1995 1996 --------- ---------- ---------- --------------- ------------- ----------- ------------ Pre-tax loss from continuing operations (778,875) (1,695,122) (6,109,697) (21,056,716) (24,033,752) (3,537,757) (12,980,078) Fixed Charges: Interest expense 174,994 388,215 836,911 12,019,656 15,169,633 304,105 4,139,663 Rentals: Operating leases- buildings, vehicles and equipment - 33% 87,242 110,545 120,097 120,097 120,097 90,072 156,477 -------------------------------------------------------------------------------------------------- Total fixed charges 262,236 498,760 957,008 12,139,753 15,289,730 394,177 4,296,140 Loss before income taxes and fixed charges (516,639) (1,196,362) (5,152,689) (8,916,963) (8,744,022) (3,143,580) (8,683,938) ================================================================================================== Ratio of earnings to fixed charges (2.0) (2.4) (5.4) (0.7) (0.6) (8.0) (2.0) ================================================================================================== Earnings did not cover fixed charges by - 778,875 1,695,122 6,109,697 21,056,716 24,033,752 3,537,757 12,980,078 Pro Forma for 1996 Pro Forma Acquisitions for 1996 Pending Acquisitions, Acquisitions Concurrent Concurrent Offering and Offering and Offering Offering -------------- -------------- Pre-tax loss from continuing operations (16,951,007) (22,345,144) Fixed Charges: Interest expense 8,426,820 10,526,820 Rentals: Operating leases- buildings, vehicles and equipment - 33% 156,477 156,477 ------------------------------- Total fixed charges 8,583,297 10,683,297 Loss before income taxes and fixed charges (8,367,710) (11,661,847) =============================== Ratio of earnings to fixed charges (1.0) (1.1) =============================== Earnings did not cover fixed charges by - 16,951,007 22,345,144