Broadband and mobile coverage checker
The mobile and broadband checker lets you:
- check indoor/outdoor mobile availability for voice, 3G and 4G services from all major providers
- view broadband availability and speeds for any UK address
- test the performance and speed of your mobile or broadband connection
- get tips on how to improve your internet connection or mobile coverage.
Enter a postcode to view mobile coverage by provider, or availability of broadband services (standard, superfast and ultrafast). You can also view the results as interactive maps.
You can view the checker in Welsh by switching languages in the top right of the page. For further information about the checker, read our FAQs.
Download the checker app
The checker is also available as an app. You can download it for free to your smartphone or tablet.
The benefits of the app over the web browser version are that it:
- runs a more robust performance and speed test with more detailed results
- allows you to test the speed of your 3G or 4G connection
- has a history log so that you can track your test results over time.
Broadband and mobile data API
The fixed broadband and mobile data is also available for developers via an API.