Hackers claimed to have stolen more than 2 billion records containing sensitive information including Social Security numbers, with some data reportedly leaked online.
First 3 digits are the area number assigned to a geographic. Next 2 are a group number and are not used serially but have a rather unusual usage sequence. The last 4 are a serial number assigned in order.
Is usa numbering just incremental? Canadian ones use a checksum type setup to determine if it is a valid SIN
There’s some brackets based on area and similar https://www.ssa.gov/history/ssn/geocard.html
First 3 digits are the area number assigned to a geographic. Next 2 are a group number and are not used serially but have a rather unusual usage sequence. The last 4 are a serial number assigned in order.