EXHIBIT 1.1 10,000,000 SHARES ALLEGIANCE TELECOM, INC. COMMON STOCK, PAR VALUE $.01 PER SHARE UNDERWRITING AGREEMENT January o, 2000 January o, 2000 Goldman, Sachs & Co. Salomon Smith Barney Inc. Bear, Stearns & Co. Inc. c/o Goldman, Sachs & Co. 85...Allegiance Telecom Inc • January 7th, 2000 • Telephone communications (no radiotelephone) • New York
