Morning X
424166 was previously VP-COD CL604 and BAe125, as far as I am aware it was now unallocated but maybe a re-allocation or a miscode of a previous ID from one of the above which are now G-OCOD and M-FRZN respectively.
43E957 M-STCO, Dassault Falcon 2000LX, c/n 240
Alan