Virgin Media has extended its underground Wi-Fi service to 41 London tube stations, including Leicester Square, Warren Street and Stratford.
The Wi-Fi service, which was launched a month ago, is being used by over 100,000 tube passengers to access the internet while in underground stations.
The service is being offered to passengers for free until the summer, which coincides with the 2012 Olympic Games.
After the summer, Virgin said that the Wi-Fi portal with Transport for London (TfL) travel information, updates and London news and entertainment will remain free for all tube passengers.
The service will however remain free for Virgin Media customers and the company is will introduce a pay as you go (PAYG) service to access the internet.
Virgin is also planning to enable 120 London Underground stations with the Wi-Fi service by the end of 2012.
Additionally, the company is providing mobile operators, internet service providers and other service providers the opportunity to wholesale the service and make it freely available to the customers.
Virgin Media director of metro wireless Kevin Baughan said: "With millions of smartphones, gadgets and devices taken onto the Tube each day, the demand for data continues to grow and we're rolling-out a future-proofed service that makes superfast wireless connections the standard."
London Underground director of strategy and service development Gareth Powell said: "Millions of commuters and visitors from around the world are now able to keep up with live travel updates, news and entertainment throughout an incredible summer and beyond."
In order to use the new free Wi-Fi service, passengers of London Underground will need to connect to the service and register their email address.
The company has installed hundreds of access points across the 41 stations, that are already WiFi enabled, offering passengers with coverage from the ticket hall to the platforms.
Each station is directly connected into the company's next generation fibre backhaul network that helped deliver over one million online interactions in a week.
Virgin Media is providing fibre connectivity to each station and London Underground, as well as installed in-station equipment, including on-platform access points, to create a station-wide hotspot.
Image: Virgin aims to roll-out and connect 120 London Underground stations with the Wi-Fi service by the end of 2012. Photo: courtesy of Virgin Media.