BT belongs to BT Group. Its broadband runs over Openreach, the group's wholesale fixed network, which passed 23.4M premises with full fibre in June 2026. BT Mobile, relaunched in May 2026, uses the EE network. BT's analogue landline network closes at the end of January 2027.

Fixed network
- Technologies
- Full Fibre (FTTP)Part Fibre (FTTC)Copper (ADSL)
- Coverage
- United Kingdom
Openreach full fibre passed 23.4M premises in June 2026 (25M targeted by December 2026). 9.4M premises are connected, a 40% take-up.

Mobile network
- Technologies
- 5G+5G4G
- Coverage
- United Kingdom
EE 5G+ reached 77% of the UK population in June 2026. The network covers more than 99% of the population and over 90% of UK geography.
Describe your problem to help the community
Bt broadband down. Smart hub 3 flashing orange. Have tried a hub reset, flashing light goes solid green and then flashing orange. Started around 1.30pm on 20.10 .26
Started about 21:30 Wed 21/10/26. Hub is still flashing blue like normal, and BT ONT is flashing normally as well. No internet available.
Internet fully out. Nothing past DNS server.
Internet intermittent, on and off around the SP4 area. Dropped off 3 time during the rain