Full List of Telecom Service Providers

Tier 1 Carriers and RBOCs

AT&T (formerly AT&T and SBC)
BellSouth
Broadwing
Cogent
Global Crossing
Internap
NTT
Qwest
SAVVIS
Sprint
Verizon
Verizon Business (formerly MCI)
XO Communications

Facilities Based Carriers and Resellers

ACC Business
Acceris Communications
Access One
AireSpring
AITech
American Telesis
Asia Netcom
Bandwave Systems
BBCOM
Broad Sky Networks
China Telecom USA
Colocation.com
DynaLink Communications
Global Internetworking
Global One
InfoHighway
LightWave
Masergy Communications
Megapath
MetTel
NBS
Netifice
Network Innovations
New Edge Networks
NuVox
OPEX
Paetec
PowerNet Global
Primus
Speakeasy
Splice Communications
Telepacific
Telnes Broadband
TMC
TNCI
UCN
US LEC
VarTec Solutions (formerly Emeritus)
Virtela Communications
Xspedius

Hosted Solution Providers and Voice over Internet Protocol (VoIP)

Aptela
Five9
insidesales.com
Network Solutions
Nuvio
Packet8
SipMedia
Trinsic (formerly Z-Tel)

Audio, Web and Video Conferencing Providers

Conference Group
FreeConference.us
GlowPoint
InterCall
NetSpoke
Premiere Conferencing
Raindance
SightSpeed
UltraConference

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