We've started switching off our 3G network to focus on faster, more reliable 4G and 5G. Are you ready?

Network and coverage

Help and support

Learn about our network tech, check your coverage and find out about any issues in your area

All about our 4G network

All about our 5G network

Help for if you’re having network problems

Here’s everything you need to know

Ready for 3G switch off? Find out if your device is WiFi and 4G Calling compatible

Can't find what you're looking for?

Track your usage, check your bills, upgrade and more

Take a look at our useful self-help guide

Head to our forum to ask questions and chat with other O2 customers