Poland (PL)

National-ID patterns loaded when you pass countries=["PL"] (or "all"). Universal patterns always stay.

This is a detector, not a legal opinion

id-extract matches the shape of these numbers. A hit is not proof that the value was issued, is still valid, or that the cited statute applies to your document. Checksums, where present, only test the extra digit.

PESEL_PL — PESEL

The Polish national identification number. Eleven digits encode birth date, serial, sex, and a check digit.

Package type	PESEL_PL
Shape this package looks for	11 digits
Checksum	weighted digits, last is the check
Example (synthetic)	44051401359

Official sources

• gov.pl — PESEL
• Ustawa o ewidencji ludności

The example values are synthetic or well-known public test numbers. Do not treat them as issued identifiers.