TFL announces full 4G coverage on London’s Elizabeth Line 

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The milestone means passengers traveling through central London stations can enjoy reliable 4G coverage on their journeys 

Transport for London (TFL) and neutral host provider Boldyn Networks have completed the rollout of high-speed mobile coverage across the entire Elizabeth Line. This marks another step in TfL’s ongoing efforts to improve connectivity across London’s transport system. 

All UK mobile network operators — Three UK, EE, Vodafone, and Virgin Media O2 — are participating in the project, allowing all UK mobile customers access to connectivity on the Tube 

Back in May, TfL and Boldyn announced that 4G coverage had been deployed at all stations on the Elizabeth Line; today’s announcement means that the coverage is now delivered inside the tunnels too.  

The work extends coverage to tunnels serving central London stations such as Whitechapel, Stratford, Canary Wharf, Custom House, and Woolwich.  

“This is yet another step towards ensuring Londoners and visitors can stay connected on our transport network. It means customers can access the latest travel information and keep in touch with colleagues, friends, and family throughout their journey on the Elizabeth line,” said Mayor of London Sadiq Khan in a press release. 

For commuters, this means the ability to stay online throughout their journey. The expanded network also benefits TfL staff, improving communications and bolstering safety by supporting the Emergency Services Network (ESN). Once fully operational, the ESN will provide frontline responders with access to real-time data and critical information during emergencies. 

The Elizabeth Line milestone is part of a broader effort from TFL and Boldyn Networks to bring mobile coverage to the entire London Underground, Docklands Light Railway (DLR), and London Overground Windrush line. 

Progression includes: 

– Northern Line: Coverage expansion towards Morden and between King’s Cross St Pancras and Moorgate, expected by early next year. 

– Bakerloo Line: Tunnel sections between Piccadilly Circus and Embankment will go live in the coming weeks, with additional stations to follow. 

– Piccadilly and Victoria Lines: Further connectivity is planned for these lines in the coming months. 

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