Polish postal code, two digits, a hyphen, then three. The hyphen keeps it clear of the five-digit codes, but it has the shape of the US employer identification number written short, so check the context in an accounting corpus.
Label: PL_POSTAL
(?<!\d)\d{2}-\d{3}(?!\d)Warszawa, 00-950 w centrum. → 00-950Kod pocztowy 31-042 dla Krakowa. → 31-042Kod 00950Kod 000-950Tags: pl, location, contact