Use this page to confirm that 390-1394
belongs to アイシティー２１ 株式会社 井上 inside
Japan. For applications, validate the original postal code string
together with the country and administrative hierarchy instead of relying on a global numeric pattern.
Centroid Location: The marker represents the verified geographic centroid for the
390-1394 identifier area.
Geographic & Administrative Context
The postal identifier 390-1394 is under the
regional jurisdiction of
Japan.
Within this territory, it is specifically managed as part of the
Nagano Ken » Higashichikuma Gun » Yamagata Mura » アイシティー２１ 株式会社 井上 administrative chain, ensuring precise logistical and geographic synchronization with official geocoded
registries.
Nearby postal code lookups
Compare 390-1394 with adjacent identifiers in
Japan. These links keep the local code range connected without
loading a large directory table.