4G rollout and Freeview interference

If you’re experiencing interference to your Freeview TV service, this could be caused by the 800MHz frequencies used by some 4G services. Use the options below to find out if you might be affected, and how we can help.

What's happening?

Find out what happens when 4G mobile services at 800MHz are activated

Find out more

Have you had a postcard from at800?

If you’re unsure, select NOT SURE to enter your postcode and find out whether we have sent postcards to your area

Yes Not Sure


Read common concerns about 4G related Freeview interference

View our FAQs

Our online diagnostic tool will help you identify what might be causing disruption to your Freeview service.

Who is at800?

at800 was set up under Government direction and we are responsible for ensuring viewers who rely on Freeview for TV continue to receive it when 4G services launch across the country. Find out more about at800 and its governance.