Codes used in several countries
HD on a licence plate
HD is an area code in 4 countries. The plate's style and country code tell them apart.
Germany
HD-AB 1234Code details →Heidelberg (Baden-Württemberg), Rhein-Neckar-Kreis (Baden-Württemberg)
Norway
HD 12345Code details →Innlandet
named after Elverum
Romania
HD 12 ABCCode details →Hunedoara
United Kingdom
HD51 ABCCode details →Bournemouth (Hampshire and Dorset)
Germany
Norway
Romania
United Kingdom