Virgin Media has announced plans to extend the coverage of its London Underground wireless broadband network.
The broadband provider will create Wi-Fi hotspots at another 20 Tube stations in December, with a further 28 set to come online in early 2013.
Using the Wi-Fi service - which was initially free for all customers during the London Olympic and Paralympic Games - travellers can connect to the internet and view live travel information, news and entertainment.
Virgin Media said the service is designed to help meet the increasing demand for mobile data, which it claims is growing at 84 per cent year-on-year.
By 2015, the broadband provider expects mobile data to account for 11 per cent of total internet traffic.
Among the next 20 stations to be added to Virgin Media's Wi-Fi network are Oval, Belsize Park, Holloway Road, Russell Square, Clapham Common, Balham, Chalk Farm, Camden Town, Bounds Green, Finsbury Park and Mornington Crescent.
Highgate, Hampstead, Seven Sisters, Lancaster Gate, Swiss Cottage, South Kensington, Turnpike Lane, Notting Hill Gate and Wood Green will also gain wireless broadband hotspots.
Jon James, Executive Director of Broadband at Virgin Media, said Wi-Fi on the London Underground has been "an incredible success".
He noted that more than 700,000 people have used the service already, generating a "remarkable" one million sessions every day.
"We’re rolling out the service to reach even more stations throughout London," Mr James added.
"We’re delighted that Virgin Media customers are making the most of our super-fast fibre-optic network, both at home with unbeatable broadband speeds and now with our ground-breaking Wi-Fi service."
Gareth Powell, Director of Strategy and Service Development for London Underground, said wireless broadband is "a great way" to keep Tube customers up-to-date with live travel information and other news and entertainment.
"We are delighted that Virgin Media is giving the majority of Londoners the chance to continue to enjoy WiFi at no extra cost next year and beyond," he stated.