(31 Jul 2016, 10:38 pm)GMitchelhill wrote Actually the way the Go North East fleetnumbering system works, the gap would probably remain as numbers cannot be re-used.
The fleet numbers were not technically used though, as the buses didn't enter service with those fleet numbers.
As such; 624 (YN04 GJU) has been numbered 6134, and 625 (YN04 GJV) has been numbered 6135.