Postal Code: 086-0072

with check digit: 012238
Kawaguchi川口
Nemuro-shi根室市
Hokkai-dou
(aka: Hokkai, Hokkai-do, Hokkai-dou, Hokkaido, Hokkaidou)
北海道

*1 JIS area code is identification code for cities,towns and villages. Maintained by JISC - Japanese Industrial Standards Committee.