Use this page to confirm that 21311
belongs to Tanjungbalai Kota I inside
Indonesia. 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
21311 identifier area.
Geographic & Administrative Context
The postal identifier 21311 is under the
regional jurisdiction of
Indonesia.
Within this territory, it is specifically managed as part of the
Tanjungbalai Kota I administrative chain, ensuring precise logistical and geographic synchronization with official geocoded
registries.
Nearby postal code lookups
Compare 21311 with adjacent identifiers in
Indonesia. These links keep the local code range connected without
loading a large directory table.