Ofcom’s free signal checker hits 1 million UK users
Key Points
- Ofcom's free Map Your Mobile coverage checker has passed one million users as of 29 May 2026.
- The tool lets people enter a postcode to compare which mobile networks perform best in their area.
- It combines crowdsourced Opensignal data with predictive modelling from the UK's mobile networks.
- Ofcom is promoting the checker ahead of summer, when holidays and peak house moves drive contract switching.
- Users can check likely indoor coverage and research networks before signing up, with results free at ofcom.org.uk.
More than one million people have used Map Your Mobile, Ofcom’s free coverage checker, to compare mobile networks where they live, work and travel.
The regulator confirmed the milestone on Friday (29 May), pointing to steady demand for a service that lets anyone enter a postcode and see which networks operate in a given area.
Each search returns a map of the networks available locally alongside a score ranking which provider performs best in that postal district.
The tool exists to help people pick the right network before they sign up or switch, putting independent coverage data in front of consumers who would otherwise rely on advertising claims or word of mouth.
Map Your Mobile tackles the everyday frustrations of dropped calls, sluggish data and patchy signal. Mobile connectivity now underpins routine tasks from online banking to booking GP appointments, which Ofcom says makes reliable signal a basic need rather than a luxury.
The checker also lets users see whether a network is likely to work inside the home, a frequent problem that standard coverage maps tend to gloss over.
For anyone weighing a new contract, that can be the difference between usable service and months of frustration.
Map Your Mobile draws on crowdsourced measurements from Opensignal, based on the real experiences of people using their phones day to day, combined with predictive modelling supplied by the mobile networks themselves.
Ofcom refreshes the figures regularly to keep results current and lets users submit feedback on the service they actually receive. The mix is meant to give a more honest picture of performance than network marketing alone, surfacing problems that often only appear once a customer is locked into a deal.
People can see which network performs best in their area, check whether coverage is likely to hold up indoors, and research the options before committing.
Comparing networks at postcode level lets people match a deal to where they spend most of their time, rather than relying on national coverage claims that can mask local gaps.
Ofcom frames the process as a route to better value for money, on the basis that a contract is only worth its price if the signal behind it works.
Summer of switching
Ofcom is promoting the tool ahead of the British summer, when holidays, festivals and the busiest stretch of the year for house moves push many people to rethink their contracts.
Patchy service on staycations and unexpected roaming charges abroad often expose the limits of a network just as usage climbs.
UK house moves peak between July and September, with more than 600,000 recorded across the period and August the single busiest month, according to the Home Owners Alliance.
“One quick check of our free tool can show you how mobile networks compare in your area. If your signal keeps letting you down, you need to Map Your Mobile,” said Natalie Black, Ofcom’s Group Director for Infrastructure and Connectivity.
The checker is free, requires only a postcode, and is available through the Ofcom website.
