Reduce the list, select first 2 letters of the city:
Listing cities (160 place(s)). Select the City to see the postcode(s):
Listing cities (160 place(s)). Select the City to see the postcode(s):
Position: Postcodes > Japan > Nagasakiken > H.... >
Postcode finder: Japan, List of the cities starting with H. Japan Nagasakiken Postcodes (Desktop version).