Codes used in several countries
HK on a licence plate
HK is an area code in 5 countries. The plate's style and country code tell them apart.
Germany
HK-AB 1234Code details →Heidekreis (Lower Saxony)
named after Landkreis Heidekreis
Greece
HK-1234Code details →Heraklion
Norway
HK 12345Code details →Innlandet
named after Kongsvinger
Ukraine
HK 1234 BCCode details →Rivne Oblast
United Kingdom
HK51 ABCCode details →Portsmouth (Hampshire and Dorset)