Since roughly 13:43 it was noticed that a lot of our TT DSL lines were flapping.
After initial investigation we have concluded our physical fibres and BGP sessions have remained up. Therefore we believe the issue to be within TalkTalk's network.
We are chasing TT at the moment.
TT have raised a major incident their side and are still investigating.
15:09, TalkTalk say: Our engineers have confirmed that the multiple impacted circuits have now recovered and service has been restored for impacted customers.
Our own monitoring shows the fault was fixed at around 14:20 today.