This site provides access to AT&T service publications of Incumbent Local Exchange Companies, AT&T Enterprises,
LLC (formerly AT&T Corp.)/AT&T Communications, Teleport Communications of America, LLC/TC Systems, Inc., SBC Long Distance,
LLC dba AT&T Long Distance, Alascom, Inc. dba AT&T Alaska, and BellSouth Long Distance, Inc. dba AT&T Long Distance Service.