Codes used in several countries
PI on a licence plate
PI is an area code in 5 countries. The plate's style and country code tell them apart.
Germany
PI-AB 1234Code details →Pinneberg (Schleswig-Holstein)
Greece
PI-1234Code details →Larissa
Italy
PI A58322Code details →Pisa (Tuscany)
Serbia
PI 123-ABCode details →Babušnica (Pirot District), Bela Palanka (Pirot District), Dimitrovgrad (Pirot District), Pirot (Pirot District)
named after Pirot
Ukraine
PI 1234 BCCode details →Vinnytsia Oblast