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Polish National Official Business Register (REGON)

Published on Sep 2, 2026

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Polish National Official Business Register has information about legal persons, organizational entities without legal personality, and natural persons running economic activities (including private farms).

Validator

Polish National Official Business Register - Validates weighted checksum.

Matched expressions

Regex expressions	Description	Score
`\b\d{9}\b`	Matches a 9-digit number of the format NNNNNNNNN.	1

Ignored expressions

None

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