If a phone format field is present then it is also extracted and stored 440. U.S. phone field is a 10-digit field where the first three digits representing the area code are optionally enclosed in parentheses or separated by a dash, space, or a period, and then followed by a 7-digit number which is separated by a dash, space, or a period after the third digit 445. Other similar methods of identifying a phone number are known to those ordinarily skilled in the art.