A new study by Ofcom has revealed that mobile network performance on UK trains is often poor, leaving passengers without reliable connectivity. The regulator tested mobile signals across 24 segments of key railway lines in England, Scotland, and Wales, finding that performance was poor on between 58% and 83% of tests.
Of the four major network providers, EE performed best, meeting standards on 42% of the segments tested. Three followed at 21%, O2 at 20%, and Vodafone at 17%. The London Victoria to East Croydon line had the best connectivity, while the Basingstoke to Coventry route was among the worst, with all networks showing very low performance.
The study highlighted that rural and intercity passengers experience worse service than those in urban areas, and performance deteriorates during peak commuting times. On-board WiFi also performed poorly, working well only 1% of the time due to outdated technology and limited speeds.
Ofcom is calling for a coordinated effort among mobile companies, local authorities, developers, and the government to improve connectivity. Natalie Black, Ofcom’s group director for infrastructure and connectivity, stated: “People rightly expect connectivity they can count on — and delivering it will require a joined‑up national effort.”
EE’s parent company BT responded by noting its significant investments in network improvements, but acknowledged that more progress is needed. A BT spokesperson said: “To secure lasting benefits for both passengers and the UK, there needs to be improved collaboration between train companies, network operators, Ofcom and the Government.”
