Exhibit 12.1 ALAMOSA (DELAWARE), INC. COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES Three Months Ended March 31, Year Ended December 31, -------------------------------- ---------------------------------------------------------- (dollars in thousands) 2003 2004 1999 2000 2001 2002 2003 -------------------------------- ---------------------------------------------------------- Fixed Charges Interest expense 26,537 18,235 2,641 25,775 81,730 102,863 99,914 Capitalized interest -- -- 657 -- 1,752 265 -- Rental expense 2,598 2,734 618 1,965 8,260 10,735 10,678 -------------------------------- ---------------------------------------------------------- Total Fixed Charges 29,135 20,969 3,916 27,740 91,742 113,863 110,592 ================================ ========================================================== Earnings Net Loss before income taxes (36,175) (24,660) (32,836) (80,189) (227,864) (469,848) (94,822) Fixed Charges 29,135 20,969 3,916 27,740 91,742 113,863 110,592 Capitalized interest -- -- (657) -- (1,752) (265) -- -------------------------------- ---------------------------------------------------------- Earnings (7,040) (3,691) (29,577) (52,449) (137,874) (356,250) 15,770 Earnings to Fixed Charges -- -- -- -- -- -- 0.14% Deficiency 36,175 24,660 33,493 80,189 229,616 470,113 94,822