I just found out that your registry numbers possibly will not coincide with those issued for Germany. I don't know if there is a European Union code for these. You can try using your vehicle identification number.
The following link explains how this system functions for German registry:
https://www.kfzteile24.de/magazin/ra...hsn-tsn-finden
The first four numbers only indicate the manufacturer. The first 3 numbers of the second set indicate the vehicle model (Cuore, MOVE, Sirion etc...). The last 5 numbers of that row will indicate option details of which your automatic transmission should be included:
