| Access One |
Netia S.A. |
| Aishwarya Telecom Pvt. Ltd |
New Century Infocomm Tech Co Ltd |
| AKADO Telecom / COMCOR |
NextGenTel |
| AKTEL - TM International (Bangladesh) Ltd. |
Norlight Inc. |
| Alaska Communications Systems (ACS) |
NorthStar Access |
| Aliant Telecom Inc. |
Northwest Telephone |
| American Telesis |
NTT Communications |
| Antel |
Numericable |
| Arcor A.G. |
Nuvox |
| AT&T |
O2 Germany |
| AT&T Latin America |
O2 Ireland |
| AT&T Wireless Services |
O2 UK |
| Avantel |
Oi |
| Axtel S.A.B. de C.V. |
One Communications |
| Bahamas Telecommunications |
One GmbH Austria |
| Bahrain Telecom BATELCO |
ONO España |
| Belgacom |
Optimus Telecomunicações SA |
| Bell Canada |
Orange Communications, Switzerland |
| Bell Mobility |
Orange France Telecom |
| Bermuda Telephone Company |
Orbitel |
| Bezeq |
OTE: Hellenic Telecom Org |
| BH Telecom |
Pac-West Telecomm, Inc. |
| Bharti |
PaeTec Communications |
| Birch Telecom |
Palau National Commmunications |
| Brasil Telecom |
Pelephone Communications Ltd. |
| British Sky Broadcasting |
Philippine Long Distance Telephone Co. |
| British Telecom |
Pioneer Telephone Cooperative |
| Cable & Wireless |
Pipex Wireless |
| Cable One |
Polkomtel S.A. |
| Cablevision Lightpath Inc. |
Polska Telefonia Cyfrowa Sp. z |
| Cablevision Systems |
Porta (Conecel) |
| Cass Cable TV, Inc |
Portugal Telecom |
| Cay Comm |
PPL Telcom, LLC |
| CBeyond |
Primesys-Portugal Telecom |
| Cell C |
Primus Telecommunications Canada, Inc. |
| Cellcom |
PTK - Dardanet |
| CenturyTel |
Puerto Rico Telephone Co. (PRTC) |
| Cesky Telecom |
Qatar Telecom |
| Charter Communications, Inc. |
Qtel |
| China Mobile |
Qwest Communications |
| China Netcom USA |
Rogers Cable |
| China Telecom |
RomTelecom S.A. |
| Chunghwa Telecom Co. Ltd. |
Rural Cellular Corporation |
| Cimco Communications |
Saudi Telecom |
| Cincinnati Bell |
SBC Communications Inc. |
| Claro, Brazil |
SFR/Cegetel |
| Cogeco Cable |
Shaw Communications |
| Cogent Commmunications |
SiMobil d.d. |
| Colombia Telecomunicaciones |
Singtel |
| Comcast Corporation |
SK Telecom |
| Completel |
Slovak Telecom |
| Comporium Group |
Sonaecom |
| Corr Wireless |
Sprint Nextel |
| Cosmote |
Starhub |
| Covad |
Suddenlink Communications |
| Cox Communication |
Sunrise TDC Switzerland |
| Credo Mobile |
Swisscom Fixnet AG |
| Croatian Telecom - HT |
Swisscom Mobile |
| CTC Communications |
Talley Communications |
| Cunningham Telephone & Cable |
TBayTel |
| Cytamobile - Vodafone |
TDC Denmark |
| DTC DeKalb Telephone Cooperative, Inc |
TDS Telecom |
| Eircom |
TelCel |
| Elisa Communications |
TelCove |
| Embarq |
Tele 2 Telekommunikations |
| EMBRATEL |
Telecom Argentina |
| ENMR Plateau Telecommunications |
Telecom Italia Lab S. p. A. |
| Entel |
Telecom New Zealand |
| e-plus Germany |
Telefonica Argentina |
| EPM Bogota |
Telefónica de España |
| Eschelon Telecom |
Telefonica Empresas |
| ETB |
Telefónica Internacional |
| Etihad Atheeb Telecom |
Telefonica Mobile |
| Etisalat |
Telefonica Movile Mexico |
| eTychy |
Telefonica O2 Czech Rep |
| Euskaltel |
Telefonica TLATAM |
| EVOX |
Telefonica, Peru |
| Excel Telecommunications |
Telehop Communications Inc. |
| Exchange Telekom Lavtiva |
Telekom Austria |
| Fastweb |
Telekom Slovenije |
| Flag Telecom Holdings Limited |
Telekom South Africa |
| Frontier Communications |
Telekom Srbija |
| Global Crossing |
Telekomunikacja Polska S.A. |
| Global Village Telecom (GVT) |
Telemar |
| GlobalTouch Telecom |
Telenet Communications Ltd. |
| Grande Communications Network, Inc. |
Telenor |
| Greenfield Communications |
TelePacific |
| GTA, TeleGuam |
TELESP |
| GTS Datanet Kft. |
Telesur |
| H3G Austria, Italy, UK |
TeliaSonera |
| Hawaiian Telecom |
Telkom South Africa |
| Hemisphere Communications |
Telmex |
| Hungarian Telecom |
Telstra |
| Hydro One Telecom |
Telus Communications |
| I.C.E. Telecom |
Telus Mobility |
| Iceland Telecom |
THALES |
| Integra Telecom |
THUS plc |
| Interoute Telecommunications (UK) plc |
Time Warner Telecom |
| Iowa Telecom |
T-Mobile Czech Republic |
| Iqara Telecom |
T-Mobile Germany |
| ITC delta com |
T-Mobile UK |
| Jasmine Telecom Systems |
T-Online Telecommunications Spain, S.A.U. |
| Jazztel SAU Spain |
T-Systems Enterprise Services GmbH |
| Jordan Telecom |
Turk Telekom |
| Kingston Communications |
Turkcell |
| Korea Telecom |
Uecomm |
| KPN |
Ukrainian Mobile Communications |
| KPN Mobile NL |
UPC Broadband BV |
| KVH Telecom Co., Ltd. |
UPC Romania |
| Lat Telekom |
Valor Telecom |
| Level 3 Communications |
Verio |
| Lietuvos Telekomas |
Verizon |
| Lumina Communications Holdings |
Verizon Business |
| Magyar telekom |
Versatel (CityKom Münster GmbH) |
| Makedonski telekomunikacii |
Videotron Ltd. |
| Maroc Telecom |
Vimpel-Communications |
| Matanuska Telephone Association |
Virgin Media Inc. |
| Maxcom Telecomunicaciones |
Vodacom |
| Megafon |
Vodafone |
| Mobilkom Austria |
Volt Telecom Group |
| Mobistar S.A. |
Waitsfield and Champlain Valley Telecom |
| Mobitel Slovenia |
Westel Mobile Company |
| movistar argentina |
Whidbey Telecom |
| MPower Communications |
WilTel Communications Group, Inc. |
| MTN South Africa |
Wind Telecomunicazioni SpA |
| MTNL |
Windstream Communications |
| MTS Allstream |
WorldTeleCom WH |
| MTS Russia |
XO Communications |
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