T-Mobile is one of the world's largest mobile operators with around 80 million customers worldwide and in the UK it is the network of choice for over 16 million customers, more than any other UK network.

T-Mobile has a range of innovative products and services such as Business 1-Plan, U-Fix, a tariff that combines pay-as-you-go and a monthly contract and web'n'walk professional, which enables customers to access their systems and information on the move. T-Mobile's network coverage is among the best in the UK (over 99% of the UK population) with one of the lowest dropped call rates.

It offers the largest worldwide Wi-Fi network, with over 1,000 HotSpots in business-friendly locations in the UK and 19,000 worldwide, and offers a rapidly expanding 3G network across the UK.