Global Crossing
Neotel PTY (Ltd)
Borusan Telekom
Ead Telecom SRL
PAETEC
Easternet Communications
Botswana Telecommunicatiions Corporation
Network Proximity
Arcadia Communication Pte Ltd
Telecard Limited
MAKECALL.NET
BT
Janacom Ltd
Omantel
Covad Communications
Vonage
Voxbone SA
T-Systems Austria GesmbH/Deutsche Telekom
BeoX
SOFTCOMMS FZC
Bangla Trac Communications
Novotel Limited
Artaviana Ltd
MHD Telecom
Onicommunications
Smile Telecom International B.V.
Akton
On Telecoms
Japan Telecom UK Ltd
WaveCrest
dotTXT Solutions Ltd
Eircom
Bharti Airtel Limited
Endstream Communications, LLC
Median Telecom GmbH
Digitalvoipcall.com
TWT
ejnet
Bpp telecom
Bankai International
Telekomunikacja Kolejowa
GuruCom
Xconnect
Longphone
Callvox
China Telecom Europe
Network US, Inc.
Net-Connect Internet s.r.l.
CarrierDomain
Voicetec Sys Limited
China Netcom(Europe) Operations Ltd.
Motion Telec
Cable & Wireless
Level 3
Zebra Telecom
Velstar International LLC
Zapna
Primetel Plc
Stein Technology LLC
Gilat Satcom
Huntington Telecom
Kulacom
Golden Telecom
Ecotel communication ag
PTCL
Ether Voice S.A ESP
Marco Polo Communications Group, Inc
Chief Telecom
Zamir Telecom Limited
Angel Telecom
IKNR
Gateway Communications Africa
VIATEL
A plus communication
China Unicom (Europe) Operations Limited
Sisu Solution
Fusion Telecommunications Int.
Aircel
Digital Communications Company
Reach Communications, Inc.
IVY Telecom SA
Spacetel UK Ltd
Callax Telecom Holding GmbH
TOLEDO Telecom SA
Awantel GmbH
Transbeam
DTAG
Elion
ICT (HK) Ltd.
Xtratelecom
Cosmofon
Reach
Telecorp
P&T Luxembourg
CT Americas
CYTA
JAZZTEL
Sound Telecom (UK)
Telecom Italia Sparkle
ANTEL
Fizan Telecom
INTERNEXA
Sourcecomm
Worldwebnet Telecom
Asia Telecom Ltd
PAM TELEKOM
HT Mostar
End2End
Citiwide
Videsh Sanchar Nigam Limited
Telenor Global Services
Real Telekom Ltd
Acme Tel FZE
DIGICOM - VTC Multimedia Corporation Vietnam
IT TEL d.o.o.
OTEnet Telecommunications Limited
NEW WEST COMMUNICATION LIMITED
ECO Solutions SIA
Ghana Telecom
Maxis Communications Berhad
MamaCall Ltd
Hello Telecom (UK) plc
IPage Infotech Pte.Ltd
IDT Global Limited
WBS Connect
Transworld Telecom Ltd
Dial Telecom Romania
PALTEL
Fortis Communications
Callgate networks.
Erbas Online
Freedom Calling Cards
XOTel SIA
MediaRing Ltd.
TEST Account - 3x
Identidad Telecom
Latino Communications
VERSCOM WHOLESALE UK
SFR
KDDI Europe Ltd.
Surfcreek Communications, Inc.
Modern Gate Telecom
NTT Communications
Calltrade Carrier Services AG
Tier Exchange
GlobalConnect A/S
OTEGlobe S.A.
PM² Telecommunication GmbH
Pangaea Networks
Prime Telecom
Telefonica
IP-Communications GmbH
KT Corporation
Protel International LLC
9Eons Limited
Oy Cubio Communications Ltd
BT Germany
UIS Telecom Limited
EtelNetworks
Tigercom Pte. Limited
IFX Networks
Slovak Telekom, a.s.
BRASIL TELECOM
NZ Phone Cards
Dialog Telekom
NASR Technologies Co. Ltd.
sip2save
OMNINET LTD.
Clarus International (UK) Ltd.
Tellcom
PTT Communicatios-group
Core Telecom
Hibernia Atlantic
Rostelecom
BTELECOM
Pearl Telecoms Ltd
Baltcom Fiber
Easycom Exchange SARL
iBasis, Inc.
Pakistan Telecommunication Company Ltd.
Makedonski Telekom AD Skopje
BTL
Swisscom (Schweiz) AG
CARRIER ITALIA S.R.L.
Asia Pacific Network, Inc.
Inter-connection LLC
CS Loxinfo Public Company Limited.
Citrus Telecommunications Ltd
TI UK
MTN (Sudan) Ltd.
Universalphone Company
VOCAL SOLUTIONS
Telkom South Africa Limited
OeBB Telekom Service GmbH
NOBEL Limited
mgi media AG
TS International
Algonet Telecom
Viacloud Inc.
Neuf Cegetel
Phonetime, Inc.
Transcom
Accenta Communications Limited
Telekom Malaysia Bhd
ez2tel
Globex
M800 Limited
IntelePeer, Inc.
Spiritel Technologies
Wise Communication Systems
Vonero Ltd
Avelacom
Chunghwa Telecom
BSO Communications
JJ Telecoms Ltd
2Talk
Ninetel Telecomm
I Age Phone, Inc.
Central Telecom
D-COM
nextcarrier telecom inc.
iCard European Telecom
Novatel
GTT Global Telecom & Technology Deutschland GmbH
Canar Telecom Ltd
South China Telecom
Hilf Telecom BV
SageCom Inc
Pre Pay & Go Ltd
NetConnexions
North Network
Vodafone Essar South Limited
ChristTel Ltd
ISKON INTERNET
EXCEL
Vizada FZE
IPVOIP s.r.o.
Wirenet AG
Callventure Telecommunications
invoco
Tellfon
QSC AG
Zajil International Telecom Co.
Netvision 013 Barak LTD.
Net D Consulting
T-SYSTEMS France
Next Generation Network Solutions
M-Link
IPage Telecom
TynTec GmbH
Holywell Technical Solutions
Acord Telecom
System One World Communications Iberia
3U TELECOM INC
LT Telecom Spa
Halktell
MEDIA BROADCAST GmbH
FiberNet Telecom Group, Inc
Global Call Ltd.
Six Telecoms Company Limited
Touchtone P/L
Telecom Liechtenstein AG
DORETEL Communications, Inc.
REFER TELECOM
Altec Telecoms S.A
Rajco Communication GmbH
Neterra
Capital City Service
Multiplex Netzwerk Kompanie GmbH
Vosys Inc.
Mid-Atlantic Broadband Cooperative
Nowtel UK Ltd
CRYSTAL CALLS LIMITED
Telecommit Inc.
Fonicom Limited
COTE ''IVOIRE TELECOM
Vyke Communications
Entanet International
2Connect
Sirius Telecom
Carphone Warehouse Networks / Opal
Anwarnet
STS - Swiss Telecom Solutions
Wallgate
Murex Telecom LTD
Telecom New Zealand UK Ltd
Global Telecom Group Inc.
RedSat Satellite Holding Ltd
Planetsky
Vanillatech GmbH
QUANTUM TELECOM, SA
TeliaSonera International Carrier
Sify Technologies Ltd
WNT telecommunication GmbH
NGT Networks Pte Ltd
Versatel Sued GmbH
Teragate AG
Selectcom
VoipClear Communictions
Intercall
SingTel
Nomi Mobile Limited
Bangladesh Telecommunications Company Limited
Sofcall Ltd
Yaband International (Asia) Limited
Telecom Argentina
TDC Fastnet Norden
FIBERTEL Trans Balkan Telecom AS
FDI /Fast Developers International Telecom
Trans Telecom
VOIPANYWHERE TELECOM
ATelNet International Inc.
Tel. Pacific Limited
JSC Moldtelecom
Swiss Update NT AG
Rebtel Networks AB
wi-tribe Pakistan limited
Elisa
Intertalk International
TOUBACOM
Sky Telecom AG
Telefonica International Wholesale Services
P-GROUP S.A.L ( OFFSHORE)
NEXGEN TECHNOLOGY
Foreststar Networks
Vietnam Telecom International
Total Access Communications PLC,. DTAC
Shinetown Telecommunication Limited
Call IP
TimeWarner Telecom
RETELIT SPA
Telco Global
A&D Montana Corp
Zanatel
du
Superonline
Arbinet
DISHNET WIRELESS LIMITED
Tectip
Nable Communications
Sentech Ltd
ZIGZAG Sp. z o.o. / Internet Group S.A.
Arbitel Networks Limited
FPT Telecom
Kingston Communications
GTT EMEA Ltd.
SingTel Europe Ltd.
COLT
VTLW@venet
NGNS
Mundo Comunicatel corp
OPTUS
MultiLinks
CINCO TELECOM CORP. (ORBITEL)
SWIFTNET LTD
Voipshop Telecommunications. Inc
ROSHAN
Teledesign plc
Effringo
Linkstar Communications Limited
Dhiraagu Pvt Ltd
Zoha Kish Telecom of Iran
Beltelecom
Wilshire Connection, LLC
One World Networks
Nawras Telecom
Dlugie Rozmowy S.A.
MAS CONNECTION, INC
One Click Communications
Bulgartel
Telekom Srbija
Singapore Telecommunications Limited
Jin
IDT Germany GmbH
VeloSolutions, Inc.
IG Telecommunications
Callmate Telips Telecom Limited
Philippine Global Communications Inc.
Dial 023 GmbH
Redeye Telecom
Telecall
VOXILITY
P Group S.A.L. Offshore
Vectone Carrier Services Ltd
Mox Telecom AG
UG Com
Digerati Networks
VoipMefree
Telco 214, Inc.
Apelby Communications
UTS (United Telecommunication Services)
Bethlehem Technologies London Limited
PCCW Global Limited
Maxteleco.Ltd
Luxconnect
Zen Tech International
Lexico Telecom LTD
G-Biz
Geo
NGP Telecom
Gamma Telecom
Philcom Inc.
Cash Telecom
MTML
HAMZ Technologies Limited
DNS:NET Internet Service GmbH
Novolink Communications
Optima Telecom Ltd
LEMONTEL.COM S.A.
ZCarrier Inc.
TE Data
BCC Business Communication Company GmbH
GTS Energis Sp. z o.o.
TUŠ TELEKOM d.d.
Amerian Fiber Systems
SAFARICOM LIMITED
Pacnet
Archway Communication Solutions
Relax Telecom Limited
Eagle state int''l ltd
Siponomic B.V.
Wholex
Minutesxchange Communications
Iskon Internet d.d.
Distrion
HELLAS ONLINE S.A.
Latinode
Kalaam Telecom Bahrain B.S.C
TEO LT, AB
Apollo-SCS Ltd
NAVIGO.IT SPA
Speakeasy Communications Ltd
Sautcom
talk global telecommunication gmbh
Zephyr (MGI Media AG)
Yupee Phone LLC
Liquid Telecommunications
Lightower Fiber Networks
012 Smile Communications Ltd.
QiComm
Technology Distribution Ltd
The Carphone Warehouse Networks
Hawar Telecommunications Co.
Raiyan Telecom/Carrier Limited
Linxtelecom
WAY2COM
QiiQ Communications
IPX Telecom Limited
Symphony Telecommunications/PhoneTime
Epsilon Telecommunications Ltd
Telekomunikacja Polska (Polish Telecom)
Telcopolis
Synapse Telecom
USCarrier Telecom, LLC
Teleglobe - A VSNL International Company
StarHub Limited
Boomerangip S.A.
Voyport
Cool Telephone
World Interconnect
CIT Communications Inc
QuaesTel Inc.
dixiTel NV
Deutsche Telekom AG
JAINA SYSTEMS NETWORK, INC
Compass Global
Thus
SMA-Inclarity Telecommuincations Ltd
Allstream
TELINTEL LTDA
NTT America
XC Networks
SPT
ALINK CARRIER SERVICES
Ukrainian Mobile Communications
GTS Novera
Bayan Telecommunications Inc
VSNL INTERNATIONAL
Tiscali International Network
Hutchison Global Communications
SMIPTel
CONNECT NETWORK
Neosnetworks Ltd
Prionet BV
BalSes iletisim Ltd.Åžti.
Coast Media GmbH
GTS-Datanet Telecommunications Ltd.
Efonica
Linxtelecom Estonia OÜ
Verizon
Catcom USA
Thuraya Satellite Telecommunications Company
Sultan Communication
Xtec Communications Ltd
Talk 24
A.A Smartcomtech
ama Consultancy
Sagitel Telecom
PT Comunicações
Bluemile Networks, Inc
Enitel
Milleni.com GmbH
Masergy Communications
Bezeq International Ltd.
SILYUS GmbH
Sri Lanka Telecom
Vox Mundi
Sido Tel
Global Iletisim A.S
ntelecom
Metrored
Lannet Communications S.A.
VoIPInvite Inc
Nutel
Trump Technology Limited
Samar Communication
Tele-Unity
GLOBALINX
EXATEL S.A.
Interoute
Engage Coms
Uganda telecom
Amtelfone Incorporated
BNS Telecom Group Plc
Multinet Pakistan Private Limited
Wind Telecomunicazioni
TELASCO Communications CJSC
RED TELECOM, LLC
Viastar LTD
Portugal Telecom
ODT Telecom
VIVODI
Romtelecom
Yoip Networld Solutions Inc.
A-ZCall Inc.
Primus Telecommunications Ltd
City Communications (SE) Limited
Lycatel Services Limited
CHEERS INTERNATIONAL TELECOM LTD
VoiceMarket Limited
IXC Global Corp.
ICC TELECOM LLC
Kalam Telecom & Import LLC
Vanco
Broadvox
Smart Communications, Inc.
Etisalcom Bahrain W.L.L
Kymeera Investment Ltd.
AEMS
IP Telecom Center - Saigon Postel Corp.
CITIC Telecom 1616 Holdings Ltd
Telekom Malaysia (UK) Limited
Mir Telecom Ltd.
Imagine Communications Group
Speedflow Communications Limited
Solaris Communications Inc.
Rawabi telecommunications and Software
WholeSwitch Telecom Holdings Limited
Wateen Telecom
Eutelia S.p.A.
42com Telecommunication GmbH
Vinculum Communications
Zain Saudi Arabia
HL komm Telekommunikations GmbH
Reliance Globalcom
Optivon Inc.
Triangle Communications AG
VOX telecom SA
Belgacom International Carrier Services
2288 International, Inc.
Tawasul Telecom
SCM GmbH
Crowley Data Poland Sp. z o.o.
Nuetel Communications
Qatar Telecom
JOOME Technology S.L.
Virgin Media
Nesma Trading Co.
Ukrtelecom
Wharf T&T Limited
Protel S.A.L. Offshoe)
LambdaNet Communications Deutschland AG
Telekom Slovenije, D.D.
Lanck Telecom
Al Fouad Telecommunications
Switched Telecom International
HanseNet Telekommunikation GmbH
Verscom
Netixs Communications
Kortel Communications Inc.
Cardiff Communications Corporation
Cencion Communications Limited
VOIX Global Sdn. Bhd.
Emirates Integrated Telecommunications Company, PJSC
InComm
Esat International Ltd
CTBC
Tele2
Business Sviaz Holding
Sprint
TELECOM NORTH AMERICA formerly 3U TELECOM INC
Telstra International
Breezecom FZC
Italy S.n.c.
Globacom Limited
Directo
Montan Telecom AG
VOIP Eden Communications, Inc.
Cogent Communications
France Telecom
Reliance Communications
Broadband Telecom Inc
Global Ringer
Invitel International
DATEK TELECOM SRL
ORANGE
Bridge International Communications Services Ins.
Voixtel
Heswick
BRIDGEONE COMMUNICATIONS
COSMOTELCO SA.
Global e Networks
Completel
Edge Telecom GmbH
C.I.T. Comunicazioni Internazionali Telefoniche S.A.
MARS Telecom Systems
TATA Telecom Inc
Oi
ACN Europe BV
Zayo Bandwidth
Tutankhamun Telecom
Telekom Austria TA AG
Gateway Communications
Arcor AG & Co. KG
Total Call International, Inc.
BTC AD
Batelco
Vovida Technologies Limited
Qwest Communications
KPN Global Carrier Services
AT&T
BLC
Interdirect Tel Limited
Galaxy Telesys Inc.
TANKARD
Tata Communications
Telmex
PHILIPPINE LONG DISTANCE TELEPHONE CO.
eTel Austria GmbH & Co KG
IPvision Inc.
Cronford Trading Ltd
NEW WORLD TELECOM
Transit Telecom
Swiss Telecom Carrier SA
PacketExchange Ltd.
Infocomm Consultancy Ltd.