Postal Code: 370-3501JIS area code: 10344 with check digit: 103446 | |
| Nagaoka | 長岡 |
| Magunshintou-mura, Kita-gun | 北群馬郡榛東村 |
| Gunma-ken (aka: Gunma, Gunma-ken, Gunmaken) | 群馬県 |
*1 JIS area code is identification code for cities,towns and villages. Maintained by JISC - Japanese Industrial Standards Committee.
