Mexican RFC tax number, three letters for a company or four for a person, then the date of registration or birth, then three characters of homoclave. It is the number an invoice carries, so it turns up in accounting exports far more often than the CURP does.
Label: MX_RFC
(?<!\w)[A-Z]{3,4}\d{2}(?:0[1-9]|1[0-2])(?:0[1-9]|[12]\d|3[01])[A-Z0-9]{3}(?!\w)Factura a nombre de GOMC900101AB3 por favor. → GOMC900101AB3El RFC de la empresa es ABC850715J21 desde 2010. → ABC850715J21La clave GOMC901301AB3 no tiene ese mesFolio GO900101AB3Tags: mx, government-id, business