I have been told (so take with a pinch of salt) that from May 2025 delivery of Class 555's could be delivered in 3's and possibly 4's instead of pairs like they've been doing

555015 has now entered passenger service

(17 Apr 2025, 8:58 am)V514DFT wrote 555015 has now entered passenger service

Has anyone got the train running numbers of which ones are new?

I have currently noted down 
GREEN - 102 | 104
YELLOW - 123 

I am sure there is more than 3 in service so which ones am I missing?

102, 104, 121, 123, and 125