Gran Tokyo South Tower
Marunouchi, Chiyoda-ku, Tokyo-to

Gran Tokyo South Tower(42 floors) has individual postal code number,except for the 100-0005 Marunouchi, Chiyoda-ku, Tokyo-to.

1st floor: 100-6601,2nd floor: 100-6602,3rd floor: 100-6603 ...
Top floor 42th floor: 100-6642Basement or Unknoen floor: 100-6690

Neighborhood

Japan Postal Code List ver.22.12a (2023-01-19 13:41:06 JST) by Fabrice Co. www.fabrice.co.jp external link