We use cookies to allow us and selected partners to improve your experience and our advertising. By continuing to browse you consent to our use of cookies as per our policy which also explains how to change your preferences.

Mobile phone coverage map

By Jon Barrow

Put us to the test

Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.

Mobile phone coverage map

Discover which network has the best phone signal where you live using our coverage checker - it uses millions of readings from real customers.

Poor phone reception is a common complaint. You've bought a new phone but then find it can be impossible to make calls, never mind get online. Or maybe you find things workable as long as you're outside, but coverage becomes patchy when you head indoors. 

And, frustratingly, there's usually not much you can do about it.

Luckily, our interactive coverage map, produced by award-winning company OpenSignal, can help you avoid these situations. Simply enter your street name, postcode or location in the search box and it will tell you which mobile phone network has the best signal in your area. 

You can choose between 2G, 3G and 4G networks and can even find out the average upload and download speeds where you live - plus see which network has the most reliable signal.

Once you've found the network with the best signal, don't forget to see how it did in our annual mobile phone satisfaction survey. Keep in mind that other operators piggy-back on EE, O2, Three and Vodafone's networks - and some of them have impressively satisfied customers.

3G and 4G coverage map


Which mobile phone network has the best coverage?

As well as using the map to check coverage where you live, we use the readings it's based on to analyse the networks' coverage across the UK.

In our latest research, covering June to August 2017, we focused on 4G performance and found that EE offered the fastest average 4G download speeds of the four networks (EE, O2, Three and Vodafone). While EE customers enjoyed average 4G download speeds of 29Mbps, those using the O2 network had to put up with an average speed of just 15.1Mbps.

EE's network was also at the top of the pile when it came to the availability of its 4G signal, with customers able to access it 78.5% of the time. Customers with Three had the poorest access to a 4G signal - they were able to access it just 57.1% of the time.

Read more in our full analysis of which provider offers the best 3G & 4G coverage.

How does the coverage checker work?

The map has been produced by independent coverage experts OpenSignal.

The coverage maps provided by phone networks are based on computer predictions, which can be inaccurate. But OpenSignal's maps are based on millions of real-life signal readings. This data is collected by users of the company's free Android and iPhone apps, and lets OpenSignal produce a coverage map showing the best network in your area.

Virtual providers, such as Giffgaff and Tesco Mobile, aren't shown because they don't have their own networks - they use the networks of the big providers, so you can expect their coverage to be similar to the parent network.

How you can help

Because we use real, rather than estimated, signal readings you can trust the information we display. However, there may be times where we're only able to provide limited information as we haven't received enough readings in that location.

To help give the best possible coverage, and to keep the map up to date, we need you to download OpenSignal's free Android or iPhone apps.

These apps provide the company with the data it needs to keep its maps up to date - and in return show you the coverage in your area. The data collected is stripped of any identifying information, and uploaded to OpenSignal's servers, taking care to use as little processing and battery power as possible.

You can read more about the apps and the coverage map on OpenSignal's website.

SHARE THIS PAGE