ACC

accel networks

Access Point

Appia

Arkadin

AT&T

BCN Telecom

Bright House

BroadSky

BullsEye Telecom

CallTower

CBEYOND

CenturyLink

Charter

cogent

Comcast

Copper Services

EarthLink

Evovle IP

exceda

globalinx

Granite

GreenCloud

gtt

icore Networks

InContact

iNet

Integra

Inter Call

Internap

Jive

Level 3

Lightpath

liveops

Masergy

Matrix

McGraw

Metro Optical

NBS

NetWolves

Nitel

Optimum

Pacnet

PGI

Phoenix Sentry

QTS

RapidScale

Safe View

Server Central

Shortel

Simple Signal

Sprint

Star 2 Star

suddenlink

Tele Pacifi

Telnes

Telx

Thinking Phones

Time Warner

TNCI

TW Telecom

United Layer

viawest

Windstream

XO

Zayo