1 EXHIBIT 6 MAXCOM TELECOMMUNICACIONES, S.A. DE C.V. AND SUBSIDIARY COMPUTATION OF EARNINGS PER SHARE DECEMBER 31, ------------------------------------------------------- 1999 2000 ---------------- ---------------------------------- Weighted average common shares outstanding.... 10,264,827 11,463,667 11,463,667 Net loss for the period....................... Ps. (236,638) Ps. (597,010) U.S.$ (62,060) Net loss per share............................ Ps. (23.05) Ps. (52.08) U.S.$ (5.41) E-154