For those born in the U.S. between 1973 and June 2011, the first three numbers of their SSNs were assigned to the ZIP Code found on their Social Security application.

Question: Are Social Security numbers assigned randomly, or is there a system involved? Answer: Contrary to popular belief, Social Security numbers are not issued randomly. The Social Security ...

The algorithm detects statistical patterns in the social security number assignment for deceased individuals. The researchers claim to be able to guess social security numbers of the living in many ...