Exhibit 10.50 FIRST AMENDMENT TO MASTER COLLOCATION AGREEMENT This First Amendment (the "Amendment") to the Master Collocation Agreement dated December 22, 2000 (the "Agreement") by and between SBC Communications Inc. ("SBC") and Network Access...Master Collocation Agreement • March 30th, 2001 • Network Access Solutions Corp • Telephone communications (no radiotelephone)
Contract Type FiledMarch 30th, 2001 Company Industry