2015 Attending Carriers
- 3G Telecom
- Acetel Communications
- Advance COM
- AFINNA ONE Srl.
- AGCS ASIA LIMITED.
- Alveron Communications Pte Ltd.
- Apelby Communications
- Arcadia Communications
- Ascend Networks Pte Ltd
- Ashan Global Inc.
- Asia Telecom Limited
- Banglatel
- BBIX, Inc.
- Bhaoo
- BICS
- BIG Ltd.
- Blue Ocean Operating Management
- Bluestar Telecom
- Brunei International Gateway, Brunei Darussalam.
- BT
- CAT,Thailand
- Cel Telecom
- Cenbong Int‘l Holdings Limited
- CENTAVO (PVT) LTD
- Centurylink
- China Mobile International Limited
- China Telecom Global
- Chunghwa Telecom Singapore Pte Ltd
- CITIC Telecom International CPC (Singapore) Pte Ltd
- CONNECTO GROUP LIMITED
- Core 3 Networks Pvt. Ltd.
- CTM (Singapore) Pte Ltd
- Dee Telecom Holdings HK Ltd
- Deutsche Telekom
- Digi Malaysia
- Digi Telecom Limited , Hongkong
- Digicel (Singapore)
- DIVULGE TELECOM LIMITED
- DST Communications Sdn Bhd
- Eagle Empire Pacific Ltd
- Ejoin Technology
- Epsilon Telecommunications
- FirstStep Technology Limited, HK
- Fizan Telecom
- Frontier Network Technology Ltd.
- Fullcent Technology Limited
- Fullroute
- Geecomms Pte Ltd
- Get A Call
- Global NGN Limited
- GlobalRoam Pte Ltd
- Glory Technology (H.K) Group Limited
- Green Bridge Network
- GRV & Co.k.s
- Gsoft Technologies LLC
- HGC
- Hoover International F.Z.C.
- Hornbill Telecom Ltd
- Impact Telecom
- Inaani Pte Ltd
- INICIO VoIP
- International Access
- IPro Networks Pte. Ltd.
- iVoice Networks Pte Ltd.
- JJTelecom
- J-Tel Telecom Inc.
- Kryptos Global Pte Ltd.
- LANCK Telekom
- Level 3 Communications
- Madanya Networks Limited
- Mblox
- Micro United Telecom Pte Ltd
- MIM TECHNOLOGIES LTD.
- Mir Telecom / FTDL
- MMD Smart
- Mobifone Global
- MTX Communications
- Multiconnects
- MyRepublic
- NDPE Network
- NetNam Corporation
- New Horizon Networks
- Nexwave Telecoms
- NGT Networks Pte Ltd
- Nightingale Communication & Services Pte. Ltd
- Orange
- PCCW Global
- Phoenix Comms
- Progresif Cellular Sdn Bhd
- Progressive Telecom Telecom LLC
- PW Carrier LLC
- Redlync
- Redworks B.V. Netherlands
- RouteSms
- Routesource Telecom
- Royal Green CommunicaGon Corp.
- RTX
- S i2i Limited
- SILVERLINE TECHNOLOGIES CORP
- Singtel
- Skytel Teleservices
- Sohonet Pty Ltd
- Solution9 Limited
- Speedflow
- StarHub Ltd.
- Syniverse
- tyntec
- TALK SHOP LLC
- Tata Communications
- Telacme
- Telcopath
- Telcovalley
- TeleAlpha Pte Ltd.
- Telecom Italia Sparkle
- Telehub Pte Ltd
- Telekom Malaysia (Singapore) Pte Ltd
- TeliaSonera
- Telin, Indonesia
- Telstra
- TEO AB
- TNZI
- Toolbox Network Pte Ltd
- Turk Telekom International
- TVoice Telecom Limited
- U Mobile
- VERSCOM CARRIER VOICE
- Vodafone Carrier Service
- Voiplatinum
- VOIPMONSTER
- Voix Global
- VOX Carrier
- Voxmage International
- VoxPace Pte Ltd
- VR Telecom S.L.
- VSC Global Telecom
- Vvox Global
- WIC
- World Hub
- Yutele Technology Limited
- Zute SIP Dialer
- And others ...
