'Southern' [code - SN]
white and grey with light green doors and dark green ends...

Class 171 : 171721-730/801-806

Class 313 : 313201-220

Class 319 : 319008/009/011-013/214-220

Class 377 : 377101-164/201-206/208-210/213-215/301-328/401-475

Class 455 : 455801-846

Class 456 : 456001-005/007-024