Coverage and Network status checker

New to Three? Use our coverage checker below to see if you can access our award-winning network. If you’re already with us, you can use our Network Status Checker to see if we have maintenance going on.

Important

Our 3G network has now been phased out across most of the UK. 

We’re not alone in doing this — other networks in the UK and abroad are also phasing out their 3G networks.

Want to find out more about our 3G networks being switched off? Use our coverage checker for information about your local area. For anything else, please go to our 3G switch off page.

Check coverage in your area

Types of mobile coverage explained

What's the difference between 3G, 4G, and 5G? Well, they're the 3rd, 4th and 5th generations of mobile network. The main difference between them is the speeds they can reach, with each generation hitting faster speeds as they go along. This affects how smooth your online experience is.

How about Home Broadband?

Our 4G and 5G Home Broadband hubs can get you online as soon as tomorrow, all with unlimited data. No landline. No engineer. No waiting. It's broadband, but better.

Take a look around

Check out our latest Pay Monthly phone and SIM Only deals.

5G phones on Three

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What affects mobile coverage and how can I improve mine?

Location’s usually the main thing that affects coverage – if you’re far away from a mast, your signal will be weaker. 

But coverage can also be affected by things like trees, being in a basement or underground, travelling, and even your phone itself. Getting higher up, opening windows, and upgrading your phone can all help improve your signal.

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Why choose Three?

Based on analysis by Ookla® of Speedtest Intelligence® data for Q3-Q4 2024. Ookla trademarks used under license and reprinted with permission.

Get in touch

Live Chat

Live Chat is open 8am to 10pm Monday to Friday, and 9am to 8pm Saturday and Sunday.

In store

Find your nearest Three store with our store locator.

Get in touch

You can chat to us in a number of different ways. Go to our contact us page to find out more.

Frequently asked questions

If you’re having problems with your signal, there are a couple of things you can try. We have a handy Network Status checker which lets you know if there are any issues or planned maintenance in your area. Or you can check our network troubleshooting steps for your device.

Still need help?

Help with recent loss of signal

If you normally have a signal but have recently lost it, there could be an outage or an issue with your device or account. Here are a few things you can try to get your signal back up-and-running again. 

1. Check for outages

If you haven’t already, check the current service in your area to see if you’ve been affected by an outage. 

2. Test your device

Try the following:

  • Turn airplane mode on then off
  • Turn your device off then on
  • Make sure mobile data is switched on
  • Update your device software
  • Reset your network settings

3. Issues with your account

Sometimes, a billing issue or a failed Top-up can stop access to our network. Log in to your account online or on the Three app

4. Try Wi-Fi Calling

You can call and text over Wi-Fi with Wi-Fi Calling. Some phones have it pre-installed and it’s compatible with iOS and Android devices. Check if your device is compatible

5. Get in touch

If these tips haven’t worked and you still need help with your signal, please get in touch with us