Codes used in several countries
FO on a licence plate
FO is an area code in 2 countries. The plate's style and country code tell them apart.
Germany
FO-AB 1234Code details →Forchheim (Bavaria)
Italy
FO A58322Code details →Forlì-Cesena (Emilia-Romagna), Rimini (Emilia-Romagna)
No longer issued
Germany
Italy