Aircel

Aircel

Airtel

Airtel

AT&T

AT&T

Bell Mobility

Bell Mobility

Comcast

Comcast

Cox

Cox

DoD

Department of Defense

EE

EE

Ofcom

Ofcom

Omantel

Omantel

Orange

Orange

OTE

OTE

Qwest

Qwest

Rogers

Rogers

Sauditelecom

Sauditelecom

Sprint

Sprint

T-mobile

T-Mobile

Telcel

Telcel

telecomegypt

Telecom Egypt

telecomitalia

telecomitalia

Telmex

Telmex

Telus

Telus

Turkcell

Turkcell

Verisign

Verisign

Verizon

Verizon

Virgin Mobile

Virgin Mobile

Vodafone

Vodafone