"Bomber Squadrons of the RAF and their Aircraft" by Philip Moyes has the following information:
The Squadron's wartime code was "UX".
Blenheim MK I: L1111, L1112 "A", L1134
Blenheim Mk IV:
L8830 "T", L9303 "F", P4851 "N", P4854 "F",
P4898 "Y", P6910 "X", R3618 "N", R3619 "T", R3709 "F", R3731 "Y", T2162 "Y", T2442 "F", V5515 "N", v5769 "X", V6025 "T", V6070 "N", V6086 "X", V6147 "T" V6226 "D", Z7295 "X", Z7491 "C".
Vengeance Mks I, IA,II and III
AN616 (II) "G", AN703 (II) "X", AN747 (II) "S", AN957 (I) "Y", AN960 (I) "O", AP116 (I) "N", EZ817 (I) "G", EZ855 (IA) "D", EZ859 (IA) "X", EZ869 (IA) "D", EZ985 (IA) "D", FB966 (III) "X".
Mosquito FB VI
HR238 "R", HR334 "S", HR400 "L", HR415 "B", HR493 "C", HR545 "S", HR665 "C", LR449 "R", RF717 "B".