Codes used in several countries
HH on a licence plate
HH is an area code in 5 countries. The plate's style and country code tell them apart.
Germany
HH-AB 1234Code details →Hamburg
named after Hansestadt Hamburg
Greece
HH-1234Code details →Heraklion
Norway
HH 12345Code details →Innlandet
named after Tynset
Ukraine
HH 1234 BCCode details →Odesa Oblast
United Kingdom
HH51 ABCCode details →Bournemouth (Hampshire and Dorset)