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.
Click 3G, 4G, or 5G below to see your coverage
Unavailable
Our 3G network is no longer available.
Yes – You currently have service
Our 3G network has now been phased out across most of the UK.
You can use our 3G network for calls, texts and data in this area at the moment, but it won’t be available in the future.
This will affect your service if 4G and 5G aren’t available in your area.
Yes – You currently have service
Our 3G network has now been phased out across most of the UK.
You can use our 3G network for calls, texts and data in this area at the moment, but it won’t be available in the future.
This will affect your service if 4G and 5G aren’t available in your area.
Yes – You currently have service
Our 3G network has now been phased out across most of the UK.
You can use our 3G network for calls, texts and data in this area at the moment, but it won’t be available in the future.
This will affect your service if 4G and 5G aren’t available in your area.
Unavailable
Unfortunately, our 4G network isn't currently available in this area.
Yes - Good service
Good news – 4G is in your area. If your device is 4G calling compatible, you’ll have good 4G coverage for calls, texts, and mobile internet.
Yes - Very good service
Great news – 4G is in your area. If your device is 4G calling compatible, you’ll have very good 4G coverage for calls, texts, and mobile internet.
Yes – Excellent service
Great news - 4G is in your area. If your device is 4G calling compatible, you'll have excellent 4G coverage for calls, texts, and mobile internet.
Unavailable
Unfortunately, our 5G network isn't currently available in this area.
Yes – 5G is available
Good news. In most cases, you can use our 5G network for mobile internet, calls, and texts.
Yes – 5G is available
Good news. In most cases, you can use our 5G network for mobile internet, calls, and texts.
Yes – 5G is live
Great news. You can use our super-fast 5G network for mobile internet, calls, and texts.
Check to see if Home Broadband is available in your area
Our coverage map meets Ofcom's High Confidence standard for 5G coverage. However, although these coverage results are accurate, the information is only a guide and doesn't guarantee service availability in a particular location. Coverage may vary depending on your device and whether you're indoors. We are continuously improving our network to ensure our 5G service reaches even more customers.
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.
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.
Check out our latest Pay Monthly phone and SIM Only deals.
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.
Based on analysis by Ookla® of Speedtest Intelligence® data for Q1-Q2 2024. Ookla trademarks used under license and reprinted with permission.
You can chat to us in a number of different ways. Go to our contact us page to find out more.
There can be a few reasons why you can’t get connected. We’d recommend checking our Network Status checker for any issues or planned maintenance in your area first. Then following our troubleshooting steps under Problems with internet on our Network Status checker page.
Our Network Status checker shows any known issues or planned maintenance in your area.
5G is the fifth generation of mobile network and delivers a massive leap forward in both speed and quality. We’re talking super-fast streaming, lag-free gaming, and lightning quick downloads.
You can check if your area has access to our 4G or 5G network by searching your postcode in our Coverage checker above. Or you can use our Network Status checker to see if there are any issues or planned maintenance in your area.
No, we don’t have a 2G network. And like other networks both here in the UK and abroad, we’re phasing out 3G. We want you to have the best experience on our network, so we’re continuing to invest in our 4G and 5G networks.
Using an older phone? To stay connected, you’ll need to upgrade to a device that’s 4G Calling or 5G compatible.
If you’re with Three UK and travel to the Republic of Ireland, you can use our Go Roam services while you’re there. If you’re permanently based in the Republic of Ireland, get connected to Ireland’s fastest mobile network – Three Ireland.
If you’re with Three UK and are travelling to a Go Roam in Europe destination, you can stay connected while you’re abroad. Remember to check which Go Roam destinations are covered before you go.
Our 4G network covers 99% of the UK population (outdoor coverage), and according to Ookla*, our 5G is the fastest around. Check which network you can get using our Coverage checker above. Or, if you’re already with us, use our Network Status checker for any issues or planned maintenance in your area.
* Fastest 5G based on Ookla® Speedtest Intelligence® data Q1 – Q2 2023. Verify at https://www.speedtest.net/awards/fastest-5g.
Unfortunately, no network can tell you how strong your signal will be indoors. That's because the signal strength needed to pass through walls and windows varies from building to building.
Your SIM card, phone settings, a low battery, and running older software can all affect the signal. If your account is on hold, that will also prevent use of the network.
The closer you are to a mast, the stronger your signal. It can also be affected by geographical things, like hills, valleys, forests, etc.
Strong winds, flooding, storms, falling trees, etc. can all affect phone masts.
Cranes or scaffolding, for example, can obstruct the signal.
When we're carrying out planned or unplanned maintenance, your signal will probably be affected.
If we’ve switched off a 3G mast in your area, you may experience reduced 3G coverage or have no 3G coverage at all. But if you’re using a device compatible with 4G calling, you may still have access to our 4G network. Find out more about our plans to switch off 3G and check if your device is compatible with 4G calling.
