Connected London

Telecoms concession goes to BAI Communications

We've awarded a 20-year telecoms concession to BAI Communications.

Now all four major mobile operators, Three, EE, Vodafone and Virgin Media O2 have now signed up to bring high-speed 4G and 5G-ready mobile connectivity across the Tube, including within the tunnels.

Work on delivering 4G coverage across the Tube network is well underway, following the successful transfer of the previous pilot section on eastern end of the Jubilee line earlier this year.

Positive progress now means that the next five stations to get coverage - Bank/Monument; Oxford Circus, Tottenham Court Road, Euston and Camden Town will go live within the next six months and the Central line through the centre of London will be connected by summer 2023.

The mobile network will also host the new Emergency Services Network (ESN), which will give first responders immediate access to life-saving data, images and information in live situations and emergencies on the frontline.

By the end of 2024, Tube customers will be able to access full mobile connectivity and the internet within every London Underground station and tunnel. This investment will remove one of the most high-profile mobile 'not-spots' in the UK.

This project will establish a backbone of mobile and digital connectivity across London. Uninterrupted 4G mobile coverage will be rolled out to all underground station ticket halls, platforms and tunnels on the Tube network. Customers will be able to check the latest travel information, keep on top of their emails and the latest news, catch up on social media, watch videos or make a quick call throughout their journey.

Adding to fibre connectivity

London's Tube tunnels will host a new high-capacity fibre optic network across London which will be used to provide full fibre connectivity across the city. Our Tube stations will be the connectivity hubs and our street assets such as lighting columns and bus stops will host a network of small mobile transmitters which will bring city-wide connectivity improvement and ready London for 5G.

The new high-capacity fibre network will take fibre directly into London's neighbourhoods, creating new opportunities for commercial and domestic usage with gigabit-capable speeds that will support digital inclusion and future growth.

More than 2,000km of cabling will be installed on the network, all of which will be fitted outside of operating hours. In addition to benefitting customers, the network will host the Home Office's new Emergency Service Network used by the Police, Fire and emergency response services.

The partnership with BAI Communications will also generate additional revenue for TfL across the 20-year lifespan of the contract and help our operations teams.

Read about Vodafone and Virgin Media O2 joining BAI's 4G and 5G service.

Three and EE have signed up to provide 4G across the London Underground network.

Jubilee line Public Cellular Network (PCN) Service

The 4G pilot we launched on part of the Jubilee line in 2020 is now a commercial service. The Jubilee line PCN service - now being run by BAI communications - runs from Westminster to Canning Town. From there, we will rollout to the east and west sections of the Jubilee line.

The service allows customers to check the latest travel information, catch up on social media and read their emails and the latest news uninterrupted as part of their journey.

Customers of all networks and associated virtual mobile networks will continue to have access to the 4G service while commercial negotiations continue.

Read BAI's press release on the new Jubilee line PCN 4G Service.

"I'm delighted that all four major mobile operators have now signed up; colleagues across Technology & Data and London Underground are working hard with BAI Communications to get the next stations completed by the end of the year to see the benefits as soon as possible."

How to connect

Your phone should automatically search for and connect to the mobile connectivity signal as if you were above ground.

Customers of EE, Three Mobile and O2 can still connect to the London Underground public Wi-Fi system.

workman with cable

Current Wi-Fi services

We still host customer Wi-Fi across more than 260 Tube stations and 79 London Overground stations. Wi-Fi is available in the ticket halls, passenger corridors and platforms of these Tube stations and in the ticket halls and passages of the Overground stations.

The new Elizabeth Line stations at Farringdon, Tottenham Court Road, Woolwich, Canary Wharf, Paddington, Whitechapel, Custom House, Bond Street and Liverpool Street all have Wi-Fi.

Public Wi-Fi will still be available to customers as part of Connected London.

See more about our current Wi-Fi service on the Station Wi-Fi page.