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Danish Personal Identification Number (CPR-number)

Published on Sep 2, 2026

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The CPR number is unique to the person and is used in Denmark as an ID number.

Validator

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Matched expressions

Regex expressions	Description	Score
`\b(?:0[1-9]\|[12][0-9]\|3[01])(?:0[1-9]\|1[0-2])[0-9]{2}-?[0-9]{4}\b`	Matches a string of the format NNNNNN-NNNN, where the first and second digits begin with [01–31], third and fourth digits begin with [01–12] and the fifth and sixth digits begin with [00–99].	1

Ignored expressions

None

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