Mobile coverage: No more 'no signal'

Mobile coverage icon

The big mobile networks cover 99% of the UK, but how can you be sure you’ll get good reception where you are? broadbandchoices explains how to check mobile coverage and what you should watch out for before you switch...

Checking coverage

Before choosing a mobile phone network, you should check coverage in the areas you're most likely use your phone - for example your home, work and any other places you frequent. A mobile or SIM-only plan's only as good as the signal it gets and if coverage is poor, call quality and internet can be awful - or even non-existent.

Signal strength is determined by your distance from a network's nearest mast. As a rule, heavily populated zones like city centres are better for coverage than the countryside. Even so, you can have dead zones - where coverage is unavailable - in both.

In short, checking coverage before switching is crucial, as each network may have better or worse coverage than others where you live and work. Every network has an online coverage checker - they're not 100% accurate as signal strength can be affected by many things, like tall buildings or thick walls, but they will give you a good idea of the coverage you can expect in different areas. See below for links to each one.

And if you found your way here looking for our mobile phone comparison, here's where you need to go:

Smarty mobile coverage

Smarty logo

Smarty runs on Three's network, so coverage is the same for both. Pretty much anyone can will get enough signal to call or text, while about 97% of the population can connect to 3G internet. 4G coverage is a little lower, however, reaching just 90% of us. Again, bear in mind that's population coverage rather than geographical.

Our recommended Smarty deals

Best buy deals
  • SMARTY sim only
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    • Exclusive
    • 2GB of 4G data
    • Unlimited minutes
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    • Buy 1 month get 2 months FREE
    • £7.50 per month
    1 month contract From SMARTY
  • SMARTY sim only
    4G
    • Exclusive
    • 4GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Buy 1 month get 2 months FREE
    • £10.00 per month
    1 month contract From SMARTY
  • SMARTY sim only
    4G
    • Exclusive
    • 8GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Buy 1 month get 2 months FREE
    • £15.00 per month
    1 month contract From SMARTY

Vodafone mobile phone coverage

Vodafone logo

Vodafone (www.vodafone.co.uk) covers more than 90% of the population. 4G coverage is less extensive, but growing rapidly - use the coverage checker to see whether you can get it or not. How do you do that? Click the button, enter your postcode or the name of the place you live and you'll see the expected coverage in that area for 2G, 3G and 4G.

Our recommended Vodafone deals

Best buy deals
  • Vodafone sim only
    4G
    • 3GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • 2GB data bonus
    • £8.00 per month
    12 month contract From Vodafone
  • Vodafone sim only
    4G
    • 6GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • 2GB data bonus
    • £10.00 per month
    12 month contract From Vodafone

Three mobile phone coverage

Three Mobile Network logo

The Three network gives mobile coverage to 99% of the population. Click the button below to go to Three's coverage checker and enter your postcode. You'll then be able to see how strong expected coverage is in that area for 3G, advanced 3G and 4G using the tabs at the side.

Our recommended Three deals

Best buy deals
  • Three sim only
    4G
    • 4GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £11.00 per month
    12 month contract From Three Mobile
  • Three sim only
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    • 12GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £18.00 per month
    12 month contract From Three Mobile
  • Three sim only
    4G
    • 30GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £17.00 per month
    12 month contract From Three Mobile

VOXI mobile coverage

VOXI logo


VOXI comes from Vodafone, and thus uses its network to connect you. A good 98% of us can get signal to call and text, with 3G coverage approaching that figure as well.

4G is a bit lower, however - around 80% of us can connect to it.

One good thing about Vodafone's network, however, is that it's known for being reliable. You can safely use your apps without worrying about suddenly getting disconnected.

Our recommended VOXI deals

Best buy deals
  • VOXI sim only
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    • 6GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Unlimited social data - Exclusive to under 30's
    • £10.00 per month
    1 month contract From VOXI
  • VOXI sim only
    4G
    • 15GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Unlimited social data - Exclusive to under 30's
    • £15.00 per month
    1 month contract From VOXI
  • VOXI sim only
    4G
    • 45GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Unlimited social data - Exclusive to under 30's
    • £20.00 per month
    1 month contract From VOXI

giffgaff mobile coverage

giffgaff logo

giffgaff piggybacks on O2's network, meaning coverage is pretty good. 99% of the population can get signal for calls and texts; around 85% can connect to 3G mobile internet; and about 70% can get 4G.

So if you're in a large town or city, using 4G should be a breeze - and you'll almost always be able to make a call.

To get an accurate idea of what it's like in your area, use O2's coverage checker.

Our recommended giffgaff deals

Best buy deals
  • GiffGaff sim only
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    • 3GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £10.00 per month
    1 month contract From giffgaff
  • GiffGaff sim only
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    • 8GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £15.00 per month
    1 month contract From giffgaff
  • GiffGaff sim only
    4G
    • Unlimited 4G data
    • Unlimited minutes
    • Unlimited texts
    • Speed restrictions apply after 20GB of data use
    • £25.00 per month
    1 month contract From giffgaff

BT Mobile phone coverage

BT logo

BT owns EE, so naturally it makes use of the same network. That means it has the widest 4G coverage of any operator, with 75% of the population able to get superfast mobile internet. Its 3G coverage is even wider, encompassing 98% of the population. To see what coverage is like in your area, use the link below.

Our recommended BT Mobile deals

Best buy deals
  • BT Mobile sim only
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    • 500MB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £10 BT Reward Card
    • £13.00 per month
    12 month contract From BT Mobile
  • BT Mobile sim only
    4G
    • 6GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £50 BT reward card
    • £17.00 per month
    12 month contract From BT Mobile

O2 mobile phone coverage

O2 logo

O2 (www.O2.co.uk) covers 99% of the population, with 3G reaching more than 85%. Its 4G coverage is more limited - it's mainly centred in and around cities - but it's expanding rapidly.

Click the button below and you'll be taken to a map of the UK. Search for your town or postcode and you can see what types of coverage are available where you live, and the quality of signal you're likely to receive.

Our recommended O2 deals

Best buy deals
  • O2 sim only
    4G
    • 10GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £17.00 per month
    12 month contract From O2
  • O2 sim only
    4G
    • 20GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £22.00 per month
    12 month contract From O2
  • O2 sim only
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    • 60GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £35.00 per month
    12 month contract From O2

Sky Mobile phone coverage

Sky logo

Sky Mobile uses O2's network, so coverage isn't bad. 99% of the population can get signal, more than 85% can connect to 3G, and over 70% can connect to 4G.

OpenSignal reckons you'll be able to get 4G about 56% of the time - if you're in a large town or city, you'll be fine.

To see what it's like in your area, use O2's coverage checker.

Our recommended Sky Mobile deals

Best buy deals
  • Sky Mobile sim only
    4G
    • 2GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £12.00 per month
    12 month contract From Sky Mobile

EE mobile phone coverage

EE logo

EE (www.ee.co.uk) 2G and 3G covers 98% of the population. It also has the widest 4G coverage of all providers.

To check coverage, click the button below to go to EE's checker, then enter a postcode or place to see the 3G and 4G availability in that area, and the expected signal quality. EE also runs Orange and T-Mobile in the UK, so you'll also see coverage for those network.

Our recommended EE deals

Best buy deals
  • EE sim only
    4G
    • 1GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £14.00 per month
    12 month contract From EE Mobile
  • EE sim only
    4G
    • 3GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £17.00 per month
    12 month contract From EE Mobile

Tesco Mobile coverage

Tesco Mobile logo

Tesco Mobile piggybacks on O2's network, so it has the same coverage. A good 99% of the population can get signal to call or text, while around 75% of us can connect to 4G. 3G coverage is quite a bit higher though, reaching well over 95% of the population.

A Tesco Mobile plan is a great way to get that coverage at a lower price, and it's not short on benefits and extras either.

Our recommended Tesco Mobile deals

Best buy deals
  • Tesco Mobile sim only
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    • 4GB of 4G data
    • 5000 minutes
    • 5000 texts
    • £15.00 per month
    1 month contract From Tesco Mobile
  • Tesco Mobile sim only
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    • 50GB of 4G data
    • 5000 minutes
    • 5000 texts
    • £25.00 per month
    12 month contract From Tesco Mobile

iD Mobile coverage

ID Mobile logo


The Carhone Warehouse-owned iD Mobile uses Three's network, which means it covers 97% of the population for 3G internet. All iD Mobile plans include 4G as standard. Follow the link below to check coverage.

Our recommended iD Mobile deals

Best buy deals
  • ID sim only
    4G
    • 8GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Includes capping + data rollover
    • £15.00 per month
    1 month contract From iD Mobile
  • ID sim only
    4G
    • 20GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Includes capping + data rollover
    • £20.00 per month
    1 month contract From iD Mobile

Virgin Mobile coverage

Virgin Media logo

Virgin Mobile shares EE's network, so you get the same coverage with Virgin Mobile as you would with EE - 80% 4G coverage. Click the link below to check Virgin Mobile coverage in the UK. Enter the postcode or location where you want to check and you can see 4G and 3G coverage and signal strength.

Our recommended Virgin Mobile deals

Plusnet Mobile coverage

Plusnet logo

Plusnet Mobile uses EE to deliver its services, meaning coverage is very good. Over 99% of the UK population is covered, including 3G mobile internet. A huge 97% can access 4G - equating to about two-thirds of the country geographically.

Like the sound of Plusnet Mobile? Pick up a SIM-only plan today - there's lots of data, and they're all on a 30-day basis so there's no commitment.

Our recommended Plusnet deals

Lebara Mobile coverage

Lebara Mobile logo

Since it also piggybacks on Vodafone's network, coverage on Lebara Mobile is pretty good. More than 99% of the population can get signal, so you can call and text from anywhere.

There's no 4G internet on Lebara, however - only 3G. It's quite a bit slower, but has far, far better coverage.

Our recommended Lebara Mobile deals

Asda Mobile coverage

Asda mobile logo

Asda Mobile uses EE's network. EE is best known for its wide-reaching 4G, which extend to Asda Mobile, offering speedy 4G at all the same locations as the EE network.

Our recommended ASDA Mobile deals

Different types of mobile coverage

Mobile networks list up to three types of service on their coverage checkers. Here's a quick explanation of what they are:

  • 2G - Lets you make calls, send texts and potentially access email.
  • 3G - Lets you surf the web, watch videos, download apps and more. Most phone plans in the UK are 3G, and overall coverage is pretty good, though some areas - particularly rural areas - are still 3G 'not-spots'.
  • 4G - The fastest mobile internet available. Let's you surf the web, stream videos in HD, download apps and music at similar speeds to a home broadband. Coverage is less widespread than 3G, though it's expanding. If you have a 4G plan and you're in an area that isn't covered by it, you'll switch to 3G.

Compare mobile phone deals

If you're looking for a new handset or mobile plan, remember to check coverage. But also compare deals to make sure you're paying the best possible price. You can do that with our mobile phone comparison service:

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