Polish phone number: an optional +48, then nine digits usually written in three groups of three. Nine bare digits also match, so it competes with the Spanish phone number and the US bank routing number.
Label: PL_PHONE
(?<![\w+])(?:\+48[\s.-]?)?\d(?:[\s.-]?\d){8}(?!\w)Zadzwon pod +48 12 345 67 89 rano. → +48 12 345 67 89Biuro 601 234 567 w dni robocze. → 601 234 567Zadzwon pod 12 3451234567890Tags: pl, contact