Postal Code: 270-0100

with check digit: 122203
When there is not a mention以下に掲載がない場合
Nagareyama-shi流山市
Chiba-ken
(aka: Chiba, Chiba-ken, Chibaken)
千葉県

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