Virgin Mobile Ltd is a mobile phone service provider operating in the United Kingdom, Australia, Canada, South Africa, the United States and France. The United Kingdom division is a subsidiary of NTL Incorporated.

The company was the world's first Mobile Virtual Network Operator, launched in the United Kingdom in 1999. It does not maintain its own network, and instead has contracts to use the existing network(s) of other providers. In the United Kingdom, Virgin Mobile uses the T-Mobile network. In the United States, the Sprint Code Division Multiple Access (CDMA) network is the carrier. In Australia, Virgin Mobile operates on the Optus network. In Canada, it uses the Bell Mobility network. In France it uses Orange. In South Africa, Virgin Mobile uses the Cell C network for coverage across the country. These networks use different technology (GSM in the UK, South Africa, Australia, and France and CDMA in the U.S. and Canada).

In all countries, Virgin Mobile offers prepaid pay as you go service. In the United Kingdom, United States, Australia and South Africa, Virgin Mobile also offer a "pay monthly" option, which allows users to pay for bills in arrears. Already very common in Britain at the time of Virgin Mobile's launch, prepaid wireless service was a very small part of the U.S. wireless market.
In 2004, the Virgin Group floated Virgin Mobile UK on the London Stock Exchange, retaining a 72% stake.
Virgin Mobile UK
In the UK Virgin Mobile was launched as the world's first Mobile Virtual Network Operator in November 1999, and has over 5 million customers. Virgin Mobile UK uses the T-Mobile UK network.

The UK service will fall under the umbrella of the new Virgin Media brand when Virgin Mobile merges with NTL in early 2007.