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O2 O2 is a leading provider of mobile services to consumers and businesses in the UK. It is the leader in non-voice services, including text, media messaging, games, music and video, as well as data connections via GPRS, 3G and WLAN.
O2 UK is part of the wider O2 group which is a wholly-owned subsidiary of Telefónica S.A. O2 comprises mobile network operators in the UK and Ireland, along with integrated fixed/mobile businesses in Germany, the Czech Republic (Telefónica O2 Czech Republic) and the Isle of Man (Manx Telecom). It also owns 50 percent of the Tesco Mobile and Tchibo Mobilfunk, joint venture businesses in the UK and Germany respectively.
Virgin Virgin Mobile is now established as the most successful virtual network operator in the UK, using the T-Mobiles network. Virgin Mobile has won the Best Customer Service Award at the Mobile Choice Awards for six year's running.With Virgin Mobile there's no peak rates, no hidden charges, and voicemail retrieval is free in the UK.
Vodafone Vodafone made the UK's first mobile call at a few minutes past midnight on 1 January 1985. Within fifteen years, the network was the largest company in Europe and the largest of its kind anywhere in the world. By the turn of the century, almost every second UK citizen had a mobile – and a third of them were connected to Vodafone.
T-Mobile T-Mobile is part of one of the largest mobile companies in the world. It's the UK network of T-Mobile International, a major branch of Deutsche Telekom AG whose subsidiaries and affiliated companies serve over 86 million mobile customers worldwide. T-Mobile International operates mobile companies in the USA, Germany, Austria, the Netherlands, Czech Republic, Poland, and Russia.
Orange Launched in April 1994 and is now owned by France Telecom.
3 3 is the largest 3G network in the UK and Europe. The 3 network is available across eight countries and has over 10 million customers. In the UK alone, 3 has acquired 3.5 million 3G customers, up by nearly half a million since March 2005.