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An API key for your app — 1,000 free conversion requests a month

Batch conversion of up to 10,000 addresses at a time

90 days of history, export it again any time

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tinhthanhpho.com

Look up and convert Vietnamese administrative units before and after 1 July 2025. Operated by HVN Group.

Data updated 06/10/2026 · Version 2026.10.8

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Convert an address Batch conversion Look up Area codes Plate codes

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API documentation openapi.json llms.txt sitemap.xml

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