Rawabi telecommunications and Software
AT&T
Ecotel Communication AG
Zanatel
BRASIL TELECON
Telenor Global Services
Crowley Data Poland Sp. z o.o.
BTL
Montan Telecom AG
BTELECOM
CITIC 1616 Holdings Limited
Business Sviaz Holding
ACRiS Telecom GmbH
Telekom Austria TA AG
Interdirect Tel Limited
Solaris Communications Inc.
Endstream Communications, LLC
Boomerangip S.A.
Tawasul Telecom
NEW WORLD TELECOM
INTERNEXA
Thuraya Telecommunication
Calltrade Carrier Services
City Communications (SE) Limited
HanseNet Telekommunikation GmbH
Plaxis telecom
Telecall
BT
Deutsche Telekom AG
Vovida Technologies Limited
HT Mostar
Cable and Wireless
Telekomunikacja Kolejowa
ROSHAN
Rajco Communication GmbH
Golden Telecom / Sovintel
Longphone
T-Systems Austria, ICSS
Latinode
Vivodi Telecom SA.
Vcore
Six Telecoms Company Limited
Capaital City Service
Arbinet Inc.
MediaRing Ltd.
FPT Telecom
KPN Global Carrier Services
iBasis, Inc.
ZCarrier Inc.
ASP
Marco Polo Communications Group, Inc
eTel Austria Gmbh & CoKG
Tellfon
LANCK Telecom
TEO LT, AB
Viacomm Limited
Qwest Communications
ORANGE
Gateway Communications Africa (UK) Ltd
CHEERS INTERNATIONAL TELECOM LTD
Amitelo Deutschland GmbH
Nowtel UK Ltd
Intertalk International
Prime Telecom
SWIFTNET LTD
Rodcom Europe Ltd
Tiscali International Network
Telecom New Zealand UK Limited
Protel International LLC
Completel
Smile Telecom International B.V.
COLT
Primetel PLC LTD
Thuraya Satellite Telecommunications Company
Bezeq International Ltd.
OTEnet Telecommunications Limited
Lycatel Services Limited
Latino Communications
3U TELECOM INC
Express Teleservice Corp. d.b.a. LANCK Telecom
IT TEL d.o.o.
Belgacom International Carrier Services
Worldwebnet Telecom
Quantum Telecom
PAETEC
Oy Cubio Communications Ltd
Anwarnet
IDT
TimeWarner Telecom
PM² Telecommunication GmbH
Level 3 Communications
Xconnect
OMNINET LTD.
TLKComm Company Ltd
Median Telecom GmbH
Clarus International (UK) Ltd.
Dial Telecom
Xtec Communications Ltd
Nomi Mobile Limited
DATEK TELECOM SRL
Slovak Telekom, a.s.
Lannet Communications S.A.
The Carphone Warehouse Networks
Romtelecom
China Netcom(Europe) Operations Ltd.
BT Global Services
Cronford Trading Ltd
FIBERTEL Trans Balkan Telecom AS
Telekom Malaysia (UK) Limited
Fusion Telecommunications Int.
TELINTEL LTDA
Callax Telecom
Next Generation Network Solutions
Hilf Telecom BV
France Telecom Group - ICSS
Coolwave Communications B.V.
Aircel
Calltrade Carrier Services AG
Minutesxchange Communications
PCCW
PALTEL
DHIRAAGU PTE LTD
Cosmofon
Novatel
Heswick Properties Limited London
Global Telecom Group Inc.
Singapore Telecommunications Limited
Siponomic B.V.
JSC @Zebra Telecom@
Rostelecom
M-Link
Swisscom (Schweiz) AG
Verizon Businesss
Telekomunikacja Polska (Polish Telecom)
Bayan Telecommunications Inc
STS - Swiss Telecom Solutions
Telefònica Deutschland GmbH
IDT Global Limited
Primus Telecommunications Inc
VERSCOM WHOLESALE UK
N/A
GTS-Datanet Telecommunications Ltd.
Hutchison Global Communications
IPage Telecom
SC Net-Connect Internet SRL
Entanet International
IPsmarx Technology, Inc.
StarHub Limited
JAINA SYSTEMS NETWORK, INC
VoipMefree
Multiplex Netzwerk Kompanie GmbH
Engage Coms
SOFTCOMMS FZC
REFER TELECOM
Tectip
Telco Global
Kingston Communications
Breezecom
Linxtelecom Estonia OÜ
Iskon Internet d.d.
Onicommunications
ANTEL
France Telecom Group
Emirates Integrated Telecommunications Company, PJSC
Reliance Communications Ltd.
Sound Telecom (UK)
Planetsky
Carphone Warehouse Networks / Opal
Awantel GmbH
Apelby Communications
Acord Telecom
Tata Communications Ltd
Chief Telecom
WaveCrest UK Ltd
Allstream
Sector 7 Networks, Ltd
Pacnet
dixiTel NV
Kalaam Telecom Bahrain B.S.C
Tata Communications
XOTel SIA
NetConnect-Internet
YYC Enterprises Limited
Neuf Cegetel
VOX telecom SA
Viastar LTD
TynTec GmbH
Callax Telecom Holding GmbH
Ventelo Sverige AB
Vinculum Communications
Vodafone Essar South Limited
Verizon Italia SpA
Ukrtelecom
HL komm Telekommunikations GmbH
MGI media AG
Gamma Telecom
Bankai International Pvt. Ltd.
Telekom Slovenije, D.D.
KDDI Europe Ltd.
Nuetel Communications
QSC AG
P-Group
Televox LTD
Elisa
Golden Telecom
Zephyr (MGI Media AG)
Spiritel Technologies
THUS PLC
Batelco Jordan
Breezecom FZC
Kortel Communications Inc.
Dial Telecom Romania
Wateen Telecom
Infocomm Consultancy Ltd.
PLDT Co.
Netvision 013 Barak LTD.
REACH UK
WBS Connect
LONGPHONE SAS
Algonet Telecom
Videsh Sanchar Nigam Limited
Mox Telecom AG
UIS Telecom Limited
PTCL
Viacloud Inc.
Xtratelecom
Telecom New Zealand
Qicomm Limited
TOUBACOM
Project Communications SPA
A.A.Smartcomtech LTD
Bharti Airtel Ltd.
NOBEL Limited
South China Telecom
Wavecrest
Surfcreek Communications, Inc.
Easycom Exchange SARL
Telekom Malaysia Berhad
Maxteleco.ltd
Edge Telecom GmbH
Catcom USA
nextcarrier telecom inc.
Bergeta Commercial Ltd
Altec Telecoms S.A
JSC Moldtelecom
NZ Phone Cards
Telecom Italia Sparkle
Wharf T&T Limited
2Connect
Bond Consulting
JJ Telecoms Ltd
Metrobeam Wireless Telecommunications ( Kulacom )
Net-Connect Internet s.r.l.
Swiss Update NT AG
IP Telecom Center - Saigon Postel Corp.
Triangle Communications AG
PCCW Global
Imaginge Communications Group
talk global telecommunication gmbh
PCCW Global Limited
Eircom
Telefonica
TWT SpA
Superonline
Broadband Telecom Inc
Borusan Telekom
EITC
TUŠ TELEKOM d.d.
Maxis Communications Berhad
Global e Networks
Synapse Telecom
SMA-Inclarity Telecommuincations Ltd
KPN
IDT EUROPE
CTBC
Tellcom
Telefonica International Wholesale Services
Protel Offshore S.A.L
JAZZTEL
Canar Telecom Ltd
WholeSwitch Telecom Holdings Limited
Bangla Trac Communications
Verizon
Milleni.com GmbH
Versatel Sued GmbH
G-Biz
Sirius Telecom
Telecommit Inc.
VoIPInvite Inc
Carrier Community LTD
Asiakomnet Multimedia
T-Systems Austria GesmbH/Deutsche Telekom
Gilat Satcom
Globacom Limited
Dhiraagu Pvt Ltd
Dollarphone Corporation
BT (Germany) GmbH & Co oHG
VSNL INTERNATIONAL
P-GROUP S.A.L ( OFFSHORE)
EMATEL
Latinode Europe GmbH
Teleglobe - A VSNL International Company
Omantel
Epsilon Telecommuications Ltd
VOIX Global Sdn. Bhd.
HELLAS ONLINE S.A.
EXCEL
Covad Communications
Sky Telecom AG
OTEGlobe S.A.
DNS:NET Internet Service GmbH
Logincall
ACN Europe BV
Lynxtel Limited
OPTUS
SAFARICOM LIMITED
WNT telecommunication GmbH
PTT Communicatios-group
CRYSTAL CALLS LIMITED
Speedflow Communications Limited
Capital City Service Ltd
Akton
IP-Only
BNS Telecom Group Plc