EXHIBIT 99.2 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES MAXCOM TELECOMMUNICACIONES, S.A. DE C.V. COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES IN ACCORDANCE WITH MEXICAN GAAP (Amounts expressed in Millions of Mexican Pesos with Purchasing Power as of December 31, 2005) 2005 2004 2003 2002 2001 --------- --------- --------- --------- --------- Income (Loss) Before Income Tax (44,633) (104,334) (385,079) (819,336) (719,316) Determination of the Ratio Fixed charges: Interest expense 81,986 28,915 24,216 234,673 510,046 Interest capitalized during period 371 283 86 903 6,740 Rental expense 12,262 6,799 10,631 16,698 14,838 Debt issuance costs -- -- -- -- -- --------- --------- --------- --------- --------- Total fixed charges: 94,619 35,997 34,934 252,274 531,624 --------- --------- --------- --------- --------- Earnings: Income (loss) from continuing operations (44,633) (104,334) (385,079) (819,336) (779,316) Fixed charges 94,619 35,997 34,934 252,274 531,624 Less: interest capitalized during period (371) (283) (86) (903) (6,740) Debt issuance costs -- (17,084) -- -- -- Total earnings: 49,615 (85,704) (350,231) (567,966) (254,432) --------- --------- --------- --------- --------- Ratio of Earnings to Fixed Charges (0.52) (2.38) (10.03) (2.25) (0.48) INSUFFICIENCY 45,004 121,701 385.165 820,240 786,056 ========= ========= ========= ========= =========