661 Carriers

Ymax Communications Corp Ca Xo California, Inc.
Verizon California Inc. - Ca Utility Telephone, Inc. - Ca
Us Telepacific Corp. - Ca Time Warner Telecom Of Califor
Time Warner Telcom Of Californ The Telephone Connection Of Lo
Teleport Communications Los An T-Mobile Usa, Inc.
Sprint Spectrum L.P.- Ca Sprint Spectrum L.P.
Sprint Communications Company, Silver Strand Enterprises, Llc
Shelcomm Sbc Internet Services, Inc.
Paetec Communications, Inc. - Pacific Bell - Clec
Pacific Bell - Ca Pacific Bell
Pac-West Telecomm, Inc. - Ca O1 Communications, Inc.
North County Communication Cor Nextel Communications, Inc.
Neutral Tandem California Network Services Llc
Mpower Networks Services Inc. Metrocall
Metro Pcs Mci Metro Ats, Inc. - Ca
Level 3 Communications, Llc - Kmc Telecom V, Inc.-Ca
Integrated Communications Cons Digitcom Services, Inc.
Cook Telecom, Inc. Commpartners, Llc - Ca
Cf Communications Cellco Partnership Dba Verizon
Brooks Fiber Communications Of Broadwing Communications, Llc
Blue Licenses Holding, Llc At&T - Local - Ca
Arrival Communications, Inc. - Arch Wireless Holdings, Inc.
American Messaging (Am), Inc. 360Networks

661 Exchanges