Polish REGON

Matches a Polish REGON (National Business Registry Number) — 9 digits for companies, 14 digits for local units.

✓ Polish company registration✓ B2B invoicing✓ Government APIs

Test String

2 matches

123456785
12345678512347

(…)Group #1— Capturing group — captures matched text for reuse or extraction

\d{9}digit— \d — digit (0–9) — repeated exactly 9 times · {9} — exactly 9 times

||— | — alternation: matches expression on left OR right

\d{14}digit— \d — digit (0–9) — repeated exactly 14 times · {14} — exactly 14 times

Pattern: 14 charsInput: 24 chars

100% client-side · private

✓ Valid Examples