Prefecture · Japan
Yamaguchi Ken Postal codes
Browse all 17 municipalities in Yamaguchi Ken. Find postal codes and location information.
Understanding Yamaguchi Ken: Postal codes (7 digits)
E‑commerce flows to Japan require accurate seven-digit postal data (0600000); without it, JP partners may hold parcels or downgrade service until.
Interactive map of Yamaguchi Ken · Japan — postal codes & coordinates
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