T-Mobile UK was a mobile network operator in the UK.First launched as Mercury One2One (stylised one2one) on 7 January 1993, the network was originally operated by Mercury Communications. one2one was purchased by Deutsche Telekom in 1999, who rebranded it with their global T-Mobile brand name in 2002.. In 1999, one2one became the world's first network to provide wireless network infrastructure ... More @Wikipedia
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