The London Underground has announced that 20 more stations have been connected to Virgin Media's Wi-Fi service including Camden Town, Notting Hill Gate and Seven Sisters.
The total number of Wi-Fi enabled stations come in at 92, with a further 28 stations due to come online in early 2013.
Passengers can get Wi-Fi access within the stations, in ticket halls, escalators and on platforms but the service will not work in London Underground tunnels.
"Thousands of our customers are already stations to keep up-to-date with live travel information, news and entertainment. The arrival of Wi-Fi at these extra 20 stations will allow even more of our passengers to connect to the net while they are on the move across London," said Gareth Powell, director of strategy and service development for London Underground.
According to Virgin Media, 800,000 people have registered for its Wi-Fi service which has been free throughout 2012 but is scheduled to become a pay as you go service for some users in early 2013.
Virgin recently announced that mobile operators EE and Vodafone were wholesale partners for its Wi-Fi service on London underground. The partnership means that active EE, T-Mobile, Orange and Vodafone customers, as well as Virgin Media broadband and mobile subscribers will be able to use the services for free in 2013 and beyond.
For those passengers that don't use any of the above services (only 24 per cent of Greater London consumers according to Virgin Media) - the pay as you go service will mean that a daily Wi-Fi pass will cost £2, a weekly pass will be £5 and a monthly pass will cost passengers £15.
The other 17 stations added to the Wi-Fi service today are: Belsize Park, Chalk Farm, Highgate, Mornington Crescent, Balham, Clapham Common, Oval, Clapham South, Lancaster Gate, South Kensington, Swiss Cottage, Bounds Green, Finsbury Park, Holloway Road, Russell Square, Turnpike Lane and Wood Green.
Earlier this year, Transport for London (TfL) CIO Steve Townsend told Computing that Wi-Fi would enable TfL's staff to better manage the transport network as well as offering benefits to commuters.