Social Security Number Prefix

In the United States, a Social Security number (SSN) is a nine-digit number issued to U.S. citizens, permanent residents, and temporary (working) residents under section 205(c)(2) of the Social Security Act.

The Social Security prefix listed below indicate which state the Social Security card was issued in. This can assist you in identifying which state the person lived in or what state they were born in based on their SSN. The prefix on a Social Security card are the first 3 numbers.