Is the number 13 a lucky number? You will be surprised to know that number 13 is considered to be lucky number and a lucky day in the calendar. In countries like Thailand and India, 13th is a lucky number and a lucky day as well. It is a popular belief that Friday, the 13th is the most unluckiest day of the year.How many digits are in a local phone number? Local customer numbers are four to eight figures long. The total number of digits is ten, but in a very few areas the total may be nine digits (after the initial zero). The "area code" is also referred to as an "STD (code)" (subscriber trunk dialling) or a "dialling code" in the UK.How many digits are in an us phone numer? Phone numbers in the United States typically consist of 11 digits - the 1-digit country code, a 3-digit area code and a 7-digit telephone number. The 7-digit telephone number is further comprised of a 3-digit central office or exchange code and a 4-digit subscriber number. The country code of USA is +1.What do digits in phone numbers mean? phone number. String of specific numbers that a telephone or cell phone user can dial to reach another telephone or mobile phone. In the US, a phone number consists of 10 numeric digits, and sometimes requires dialing a 1 (the US country code) before the 10 digits.
In Oracle, you can check the validation of phone number by Regular Expression: '^0\d {9}\d {10}$' means phone number must start with digit 0, then followed by 9 or 10 digits (i.e 01646947314 (11 digits) or 0123456789 (10 digits) is VALID, and 123456789 or 0123456 is not valid). You can modify this code to 7 digits by dropping "" in regular