COMMNET CELLULAR INC. EXHIBIT 12.1 Ratio of Earnings to Fixed Charges (Amounts in thousands) Years ended September 30, ---------------------------------------------------- 1992 1993 1994 1995 1996 ----------- --------- --------- ------- -------- Income (loss) before income taxes $(17,042) $(22,666) $(16,751) $ 62 $(4,396) Add: Interest on indebtedness 14,801 16,428 21,339 26,044 28,208 Portion of rents representative of the 391 378 455 803 1,266 interest factor -------- -------- -------- ------- ------- Income (loss) as adjusted $ (1,850) $ (5,860) $ 5,043 $26,909 $25,078 ======== ======== ======== ======= ======= Fixed charges: Interest on indebtedness 14,801 16,428 21,339 26,044 28,208 Portion of rents representative of the 391 378 455 803 1,266 interest factor -------- -------- -------- ------- ------- $ 15,192 $ 16,806 $ 21,794 $26,847 $29,474 ======== ======== ======== ======= ======= Excess (deficiency) of earnings to fixed charges $(17,042) $(22,666) $(16,751) $ 62 $(4,396)