Akamai
AT&T (TCG)
Cogent
Cooplabs
Covad
Elan Communications
Financial Oxygen
Global Crossing
Global Netoptex
GRIC Communications
Hurricane Electric
iMedia Networks
Infortech
Internap
IP Networks
Level 3
Looking Glass Networks
Lucky Communications
Maccius
Mail Frontier
MFN/AboveNet
Mzima Networks
Nectartech
NetMagic
OnFiber
Optigate Networks
PAIX.Net / Peering by PAIX
Peer 1 Networks
Premianet
Primus Telecom
Qwest
Rockefeller Group
SBC / Pacific Bell
Sierra Tel
Silicon Graphics, Inc.
Silicon Valley Web Hosting
SingTel
Southern Cross
TAGnet
Tango Tech
Telecom New Zealand
Time Warner
Tradec
UUNet
Wide Area Mgt Services
WilTel Communications
Worldcom / MAE West
XO Communications
http://colocationamerica.com/connectivity.htm