Attending Carriers

25TH Century Technolgy Ltd
3G Telekom
42com Telecommunication GmbH
ACTS Iletisim ve Bilgi Teknolojileri A.S.
Airtel India
AlkaIP Telecom
ALTCOM TECH
Amsterdam Internet Exchange (AMS-IX)
Apelby Communications
Apollo
ArisCall Ltd
ARN TECH LIMITED
ASGSM
Ashan Global Inc.
Audiotel Telecom
AVYS Telecom S.L.
Bernet Telecom LP.
BICS
Blue Star Telecom LTD
Brain Friends Ltd
Bright Telecom
Brilliant Telecom
BT Global Telecom Markets
Calltrade
Carrier Community
Caucasus Online LLC
China Skyline Telecom Co. Limited
Citycom Networks P Ltd
CLARICALL
Cloud 9 Telecom Limited
Commune Solution
ComSys (Gh) Limited
Confab Telecom
CONNECTO GROUP LIMITED
CT LTD
Cybizztel
Data Access Solutions Inc.
Dial Telecommunications Ltd
DIGITALK Limited (DIGITALK)
Dimotel Fze
Ecocarrier Inc.
Ecofon UAB
EQUINIX
ET Telecom
ETISALAT
eVOX Trading
EXATEL SA
Excila Telecom
Expereo International
Feroval Telefono Ltd
FirstStep Technology Limited, HK
Fizan Telecom
Fortis Communications
Global Convergence Solutions
Globalringer Inc.
GMS VoIPMonster FZ-LLC
GOIP Group / Consultant
Golden Link Telecom
GSoft Technologes LLC
Hilf Telecom  TBC
HooverTel
Hornbill Telecom Ltd
HTS Tel
Icon Global
Icon Global Services Limited
INICIO LIMITED
Inox Communication Networks Ltd.
Intelcom Line Inc.
IntelgTech
Interaxis
Interconnect LTD
Interoute
Invatek Corporation
IPT Networks
ITENOS GmbH
iTip
iVoice
Jerasoft
Jersey Telecom Global
KOL TELECOM SERVICES LLC
Kryptos Global Pte Ltd.
LANCK Telecom
Lebara
Letztalk
Lexico Telecom
Limecom
Logicalflip Communications Pvt. Ltd.
Luxor Communications S.A.
Madeena Life
Manana Innovations and Consultancy (HK) Limited
Manor Telecom
Mediafon UAB
Mediatel
Mir Telecom
MMDSmart Ltd (Ukraine)
Monty Mobile International
Mouj al Bahar Communications Co Ltd
MTX Communications
Myphone LLC
Nas Point Communications LLC
NAXLA
NewTelco GmbH
Nexge Technologies (P) Limited
Nexmo
NextPage Services Pvt. Ltd.
NGN CORP S.A.L
NL-ix  
Nordconnect
O2 Czech
One Touch Technology
Orinoco d.o.o.
OTS
PALTEL- Palestine Telecommunications Company
PCCW Global Limited
Pioneer Trading Company s.a.r.l.
Progressive Telecom  LLC
Pure Minutes
Qatama Communications
Qualitynet
Quantum Global Communications (QGC)
RiseTel
RouteVoice Limited
Rovex Telecom
RTel Global
RTX
Sahara DZ Ltd
Samitel
SCTLybia
Sheng Li Telecom International LTD
Sify Technologies.
Silverline Technologies Corp
SIMBERRY Inc.
Simigenix LTD
Softnet  d.o.o.
Spactron
Speedflow
SRG Telecom Ltd
Synectiv Ltd.
Telcoglobe
Telefonik
Teleonic LLC
Telera Consulting
TEO AB
Thomson Reuters
Toos Telecom
TTC communication
TVoice Telecom Limited
Ultra Mobile
Venus Telecom
Venus Telecom Ltd.
Verscom
Viacloud
Virgin Mobile MEA
VM Telecom
Voice Courier FZE
Voip Tel USA
Voip2Internet
VoIPMONSTER
VoIPNeed Communications Limited
Voipride Communications Inc.
Voizcom
Vovida
Vox Carrier
Voxmage International FZE
Voxvalley Technologies
Wahba Telco
Wavetel
WIC WorldCom International Communications
XOtel
ZaKanTel

and others