Codes used in several countries
PO on a licence plate
PO is an area code in 8 countries. The plate's style and country code tell them apart.
Greece
PO-1234Code details →Dodecanese
Italy
PO A58322Code details →Prato (Tuscany)
Poland
PO 12345Code details →Poznań (Greater Poland)
No longer issued
Serbia
PO 123-ABCode details →Veliko Gradište (Braničevo District), Golubac (Braničevo District), Žabari (Braničevo District), Žagubica (Braničevo District), Kučevo (Braničevo District), Malo Crniće (Braničevo District), Požarevac (Braničevo District)
named after Požarevac
Slovakia
PO 123ABCode details →Prešov (Prešov Region)
Slovenia
PO AB-123Code details →Postojna
named after Postojna
Spain
PO-1234-ABCode details →Pontevedra (Galicia)
United Kingdom
PO51 ABCCode details →Preston