Vodafone
Virgin Media
EE (telecommunications)
Orange S.A.
Openreach
TalkTalk Group
Deutsche Telekom
O2 (UK)
Telefónica
Plusnet
Sky Group
Virgin Media O2
Royal Mail
KCOM Group
British multinational telecommunications services company
bt.com
BT Group plc is a British multinational telecommunications holding company headquartered in London, England. Wikipedia
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