Codes used in several countries
FB on a licence plate
FB is an area code in 4 countries. The plate's style and country code tell them apart.
Austria
FB 123ABCode details →Südoststeiermark (Styria)
No longer issued
Germany
FB-AB 1234Code details →Wetteraukreis (Hesse)
named after Friedberg
Norway
FB 12345Code details →Innlandet
named after Lillehammer
United Kingdom
FB51 ABCCode details →Nottingham (Forest and Fens)