Codes used in several countries
ZR on a licence plate
ZR is an area code in 3 countries. The plate's style and country code tell them apart.
Germany
ZR-AB 1234Code details →Greiz (Thuringia)
named after Zeulenroda
Norway
ZR 12345Code details →Finnmark
named after Vadsø
Serbia
ZR 123-ABCode details →Žitište (Central Banat District), Novi Bečej (Central Banat District), Nova Crnja (Central Banat District), Sečanj (Central Banat District), Zrenjanin (Central Banat District)
named after Zrenjanin