512 Carriers

Ymax Communications Corp. - Tx Xspedius Mgt Co. Switched Serv
Xo Texas, Inc. Worldcall Interconnect
Western Communications, Inc. D Utex Communications Corp. - Tx
Time Warner Communications Axs Tex-Link Communications, Inc.
Teleport Communications Housto T-Mobile Usa, Inc.
T Mobile Usa Sprint Spectrum L.P.
Sprint Communications Company, Southwestern Bell Wireless, Ll
Southwestern Bell - Tx Southwestern Bell
Sbc Internet Services, Inc. Panoptos
Pac-West Telecomm, Inc. - Tx Nextel Communications, Inc.
New Cingular Wireless Pcs Metrocall
Level 3 Communications, Llc - Ionex Communications South, In
Icg Choice Com, L.P. - Tx Ibfa Aquisition Company, Llc -
Gte-Sw Dba Verizon Sw Inc. - T Grande Communications Networks
Fitch, F. Cary El Paso Networks
Dobson Cellular Systems, Inc. Cricket Communications
Centurytel Of San Marcos, Inc. Central Texas Technologies, L.
Central Tel Co Of Texas Cellco Partnership Dba Verizon
C3 Communications, Inc. - Tx Brooks Fiber Properties Of Tex
Broadwing Communications, Llc Austin Bestline Company - Clec
At&T - Local - Tx Asap Paging - Texas
Arch Wireless Holdings, Inc. American Messaging (Am), Inc.
Alltel Communications, Inc. - Alaska Native Broadband 1 Lice
Air & Wire Network Comm Inc, D Advanced Paging

512 Exchanges