– Being the largest and the oldest Vodafone and O2 (earlier known as BT Cellnet) were the two major market leaders among the four UK mobile phone networks. T-mobile (one 2 one) and Orange were the remaining two mobile phone networks offering their mobile phone telephony services to the UK consumers. Apart from these UK mobile phone networks there were few virtual mobile phone UK networks too using the infrastructure from T-mobile, Vodafone and O2 with under the name of Virgin Mobile, Easy Mobile, OneTel and Tesco. Three was the first UK mobile phone network that comes up with the third generation of mobile phone telephony with the new technology and 3g services. O2 and Vodafone stay on the top of the chart with its best services and good coverage.
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