Telecommunications Operator

Deutsche Telekom

Vonage

Virgin Media

Vivendi

Advanced Info Service

Vodafone

KDDI

BT Group

KT Corporation

SK Telecom

LG Uplus

Rogers Communications

Cox Communications

MTN Group

Telia Company

Sparklight

RCS&RDS

Vocus Group

Consolidated Communications

Cincinnati Bell Inc.

IDT Corporation

GTT Communications

Granite Telecommunications

MediaCom

Maxis Communications

Tata Communications

Zayo Group

PLDT

OTE

Turk Telekom

Taiwan Mobile

Millicom

A1 Telekom Austria Group

Telephone and Data Systems

Vodafone Idea Limited

Telecom Argentina

Crown Castle International

Windstream Holdings

United Internet

SingTel

Proximus

Optus

KPN

Mobile TeleSystems

Ooredoo Oman

Frontier Communications

VimpelCom

América Móvil

China Communications Services Corporation Limited

Telkom Indonesia