Network Coverage

We've got you covered with our fast 3G and 4G network that covers 99% of the UK population

Introducing WiFi Calling

Wifi Calling, available on selected devices, allows you to make and receive calls and texts using your WiFi network.

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4G Calling

If 4G is available, this feature will allow you to take phone calls using our 4G Network.

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Check Coverage & Network Status

Enter any postcode below, such as a home or work address, to check if you're covered by our network.

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Return up to 30 days

If you're not happy with our network, you can return up to 30 days post-purchase (14 days if you bought in-store).

Returns & Cancellations

iD Community

If you've got a specific question for us, why not ask our iD Community? Our community heroes are here to help.

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4G is the 4th generation of mobile technology.

4G makes using the internet quicker than ever before, even when you're out and about. With 4G, you no longer have to be sitting at home to download your favourite film or TV show, enjoy multiplayer online gaming, or stream live coverage of the big footie match. You can do all this even when you're on the move.

    4G gives you:
  • Faster downloading and uploading, so it's great for watching videos.
  • Faster response times, so no more lagging when playing live online games.

3G launched in 2003 and gave us the power to do more advanced things on our phones than just making calls and sending text, like browsing web pages and making video calls.

3G is still used widely throughout the UK. It's fine for checking emails, browsing Facebook and watching videos on YouTube, but it can sometimes take a while to load. This isn't the case with 4G.

4G came along in 2012 and is around five times faster than 3G. 4G is brilliant for watching videos, streaming music and downloading apps at lightning fast speeds!

Your phone will show '4G' next to the signal bars if mobile data is switched on. 4G won't appear if WiFi is switched on though, so switch this off before checking.

All of our plans are 4G-ready. However, to get the most out of 4G you need to be in a 4G coverage area and have a 4G-ready phone. You can check whether your phone is 4G-ready by reviewing its technical specs, and you can check the 4G signal in your area using our coverage checker above.

If your handset is only 3G-ready it'll still work on our network, but you won't be able to get the full data download speeds that come from using 4G.

The 4G network we use is continuing to grow. It already covers many parts of the UK, and we're aiming to cover 98% of the UK's population by the end of the year. In the meantime our 3G network already covers 97% of the UK population, and our Advanced 3G speeds are the fastest in the UK.

You can also use the coverage checker above to see if 4G is already available in your area.

Advanced 3G is half way between 3G and 4G and allows you to download data at much faster speeds than normal 3G. Advanced 3G uses DC-HSDPA (High Speed Downlink Packet Access) technology to increase data speeds dramatically depending on the coverage in your area, and if your handset is compatible (you can find this out by referring to your phone's technical specifications). You can use the coverage checker above to see if Advanced 3G is available in your area.

A lot of things can affect the strength of your signal. Your distance from the nearest phone mast can make a huge difference. Large obstructions like trees and buildings (especially ones with lots of metal) can make your signal worse too.

    If you're having signal problems here's a few tips to try and make it better:
  • First of all, go for the tried and trusted method of turning your phone off and on again. Yes, it's obvious - but sometimes it really does work.
  • If you're using your phone indoors, try going into different rooms to see if it makes any difference. Some rooms can get a stronger signal than others.
  • If you want to get a little more technical, put your SIM card into another phone and test your network coverage. This will help you to work out if there's a problem with your phone or the network.
  • Doing a factory reset can sometimes make a difference. Backup your phone's data first of all, then go into system settings and carry out a reset.
  • You can also disable 4G. If your handset is connecting to a weak 4G signal, disabling 4G and using the 3G with 97% population coverage, will likely improve your signal.

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