A
TOC▸ is dead. Long live the TOC!

National Express East Anglia are no more. Abellio Greater Anglia's franchise started at 0200. First scheduled train for the new franchise is, I believe, the 0440 to Broxbourne, although there is a rail replacement bus to Stansted Airport at 0410.
EDIT: To add. There is one remaining
NXEA▸ service out there. The 2245 Cambridge - Bury St Edmunds is heavily delayed due to the weather. Live departures showing over 3 hours overdue at Bury St Edmunds. Last heard of near Newmarket, possibly stuck. Pity the poor passengers if that is the case.