Tier 1 ISP's
AOL Transit Data Networks
AT&T
Global Crossing
Level 3
Verizon Business
NTT Communications
Qwest
SAVVIS
Sprint Nextel Corporatoin
TeliaSonera

Tier 2 ISP's
PCCW Global
Limelight Networks
nLayer
Mzima Netorks
Tiscali International

Local ISP's
CCIS.net
Netconex