We have seen two blips today (10:30 and 11:48), these have affected only a small number of BT circuits but we have raised this with BT. We suspect some sort of fibre break in a specific area of the country has caused lines to be re-routed.
These drops are related to the cause or larger number of line drops we saw yesterday late evening: https://aastatus.net/42678
A faulty network card within BT's core network caused routing flaps. The card is due to be replaced today.