Mobile phones, sample (here) regex101 - sample ^(\+\d{1,3}\s?)?\(?(\d{2,3})\)?[\s.-]?(\d{3}[\s.-]?\d{4})$ example: +1 (508) 3334444 0-16: +1 (508) 3334444 0-3 +1 4-7 508 9-16 3334444 Hints - vCard formatting vCard format (.vcf) (here)