ISO 3166-2:JP

Currently for Japan, ISO 3166-2 codes are defined for 47 prefectures.

Each code consists of two parts, separated by a hyphen.

The first part is JP, the ISO 3166-1 alpha-2 code of Japan.

The second part is two digits (01–47), which is the Japanese Industrial Standard JIS X 0401 code of the prefecture.

The codes are assigned roughly from north to south.

Map of Japan with each prefecture labelled with the second part of its ISO 3166-2 code (with leading digit 0 omitted)