JSON API for JIS X 0401, Prefecture Idetification Code (都道府県コード).
You can use 3 JSON APIs of Prefecture Code.
- Prefecture Code and Prefecture Name (in Japanese Kanji): https://madefor.github.io/jisx0401/api/v1/jisx0401-ja.json
- Prefecture Code and Prefecture Name (in English): https://madefor.github.io/jisx0401/api/v1/jisx0401-en.json
- Prefecture Code and Prefecture Name (in Japanese Kanji and English as Object): https://madefor.github.io/jisx0401/api/v1/jisx0401.json
- JIS X 0401-1973 都道府県コード http://kikakurui.com/x0/X0401-1973-01.html
- 都道府県コード及び市区町村コード(総務省 電子自治体) http://www.soumu.go.jp/denshijiti/code.html
- https://ja.wikipedia.org/wiki/%E5%85%A8%E5%9B%BD%E5%9C%B0%E6%96%B9%E5%85%AC%E5%85%B1%E5%9B%A3%E4%BD%93%E3%82%B3%E3%83%BC%E3%83%89#.E9.83.BD.E9.81.93.E5.BA.9C.E7.9C.8C.E3.82.B3.E3.83.BC.E3.83.89
- https://www.iso.org/obp/ui/#iso:code:3166:JP
- https://en.wikipedia.org/wiki/ISO_3166-2:JP