London has been revealed as the UK’s best area for mobile signal, while more rural locations including Taunton and areas in Wales were the worst, according to data collected by Which?
Which? created a mobile network quality map, which uses data from consumer mobile handsets to create a percentage score to rate the consistency of phone signal across different postcodes across the UK.
The mobile quality map is powered by over 17 million network tests taken across the UK over the last 12 months from users of Opensignal apps and is powered by the same data as the Ofcom Map Your Mobile tool.
The research found those in bigger cities including London, Nottingham and Glasgow, received the best mobile coverage.
The SE11 area in London, covering parts of Kennington and Vauxhall, tied with NG23 in Nottingham for the postcode with the best quality mobile coverage, scoring 87.8 per cent.
All of the big four mobile networks - EE, O2, Three and Vodaphone - delivered consistent connections in both areas, with scores of 85 per cent or more.
Meanwhile, two other London postcodes – SW3 and SE27 – ranked in the top 10 best postcodes for mobile quality.
Other areas in and around the capital with strong coverage include Sutton, Romford and Ilford.
Postcodes in Wales and the south west of England were rated as having the patchiest and most unreliable mobile service in the UK.
The popular seaside tourist destination, SA70 in Tenby, was rated the worst postcode for mobile network quality as mobile users in the area only had good connection 54.3 per cent of the time.
Other areas rated with the poorest signal included Llandrindod Wells in the LD1 region, as well as TA5 in Taunton.
Three postcode areas in Truro – TR4, TR18 and TR27 – ranked in the 10 worst postcodes for mobile signal.
Which?’s mobile network quality map is free to use so phone users can check the mobile coverage in their postcode and find the networks providing the best quality signal.
