Use this page to confirm that 380-0821
belongs to Tsuruga(Kamichitosemachi) 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
380-0821 identifier area.
Geographic & Administrative Context
The postal identifier 380-0821 is under the
regional jurisdiction of
Japan.
Within this territory, it is specifically managed as part of the
Nagano Ken » Nagano Shi » Tsuruga(Kamichitosemachi) administrative chain, ensuring precise logistical and geographic synchronization with official geocoded
registries.
Nearby postal code lookups
Compare 380-0821 with adjacent identifiers in
Japan. These links keep the local code range connected without
loading a large directory table.