We've noticed a number of Talk Talk line drop starting around 17:27. Most have since reconnected. We have opened a ticket with TT to investigate
Flap in TT core network
Update from TalkTalk: Some customers got re-routed to alternate core network devices following two short-duration fibre disturbances within our core network. This has been escalated to an on-call engineer for further investigation. TT have now closed the incident.