Best and worst UK postcodes for mobile coverage revealed - The Mirror

Best and worst UK postcodes for mobile coverage revealed - The Mirror

Mobile phone users can find out how good - and bad - the mobile signal is where they live, and who are the best and worst providers

UK’s worst postcodes for mobile network quality revealed

Which? and Opensignal have collaborated to find out which areas of the country have the least reliable mobile connections.

Which? Reveals Best and Worst UK Areas for Mobile Signal via New MAP

Consumer magazine Which? has today teamed up with crowdsourced network benchmarking firm Opensignal to produce a new UK map of mobile network quality. The map uses real-world data to create a percentage score for how consistent the signal is in each postcode area in the year to August 2025 – split by EE, O2, Three UK and Vodafone. The map itself is said to be based on over 17 million network tests taken across the UK over the last 12 months from…