Codes used in several countries
CZ on a licence plate
CZ is an area code in 3 countries. The plate's style and country code tell them apart.
Italy
CZ A58322Code details →Catanzaro (Calabria), Crotone (Calabria), Vibo Valentia (Calabria)
Norway
CZ 12345Code details →Akershus
named after Jessheim
United Kingdom
CZ51 ABCCode details →Antrim (Northern Ireland), Down (Northern Ireland)
named after Belfast