Telephone company
organization that provides telephone and/or other telecommunications service
Vesper
Virgin Media O2
Telecommunications Bureau
Al-Madar Al-Jadeed
Telmex
Orange
BT Mobile
Southern New England Telephone Company
Net 1
Free
Carrefour Mobile
OPT
Ice
A-Mobile
local exchange carrier
T-Mobile Polska
Bell System
Burlington Telecom
Google Voice
Fizz
Melita
New England Telephone and Telegraph Company
New York Telephone Company
O2
Telstra
Australian Telecommunications Corporation (Telecom)