Entidades registradas:

TELEFONICA INTERNATIONAL WHOLESALE SERVICES
TELEFONICA INTERNATIONAL WHOLESALE SERVICES CHILE S.A.
TELEFONICA INTERNATIONAL WHOLESALE SERVICES BRASIL LTDA.
TI Sparkle
ORANGE
IBASIS
NTT AMERICA
OI Brasil
ATT
CANTV Venezuela
TELECOM (Argentina) - Argentina
New World Telecommunications Ltd Hong Kong - China
JAZZTEL España
BT LATAM - Brasil
Epsilon Telecommunications
CAPITAL CITY SERVICE LTD.
Corporación Telemica C.A. (Inter)
Speedflow Communications LTD
Global Crossing
BANKAI GROUP
CIA. CHILENA DE COMUNIC PARALLEL S.A.
Mera Systems
Transit Telecom
Sercicio di Telecomunicacion di Aruba (SETAR) N.V.
INTEREC S.L. - España
VERIZON Argentina - Argentina
COPACO - Paraguay
Netvoice Telecom
MOVISTAR - Venezuela
CNT EC - Ecuador
BA WAY SRL
TELESP - Brasil
Dorial Management, LLC
Belgacom International Carrier Services
ORANGE DOMINICANA
TELARIX
TASA - Argentina
TIM - Brasil
ARBINET
TATA COMMUNICATIONS
ETELIX NET Communications
Vodacode LLC
Blue Communications Internnational
ANTEL Uruguay
COLOMBIA TELECOMUNICACIONES S.A.E.S.P.
Excel Telecommunications
Systems Management Speciallist
Level 3 Communications
Americatel Perú S.A.
BTS
InComm Network Services
Nuevatel PCS de Bolivia S.A.
123.COM.VE -  Venezuela
COTAS LTDA.
ORANGE
ORANGE WHOLESALE
VERIO
Gafnney S.A.
NetCom Satelital S.A.
CALLTRADE
CIMA TELECOM
Crossfone Argentina
TRICOM Rep. Dominicana
EEPPM - ORBITEL - Colombia
Epaña Networks
Musurit s.r.l.
Nuevatel PCS de Bolivia S.A.
Telecall
IDT Telecom
VoIP Logic, LLC.
HONDUTEL
ENTEL Chile
Phonetime Network Inc.
ALXTEL,INC.
Grupo Infotel
Inovatel
ICE Costa Rica
ENTEL (Bolivia) - Bolivia
TELINTEL LTD
Orange - France Telecom
EMPRESA PUBLICA MUNICIPAL DE TELECOMUNICACIONES, AGUA POTABLE, ALCANTARILLADO Y SANEAMIENTO AMBIENTAL DE CUENCA, ETAPA
Global Crossing
Lanck Telecom
Ibasis
Tinet
Brasilfone Telecomunicaçao
Corporación Digitel, C.A.
Bantel S.A.
Level (3)
TELSIM TELECOM
Mission Communications