On 08/12/2010 12:39 AM, John Higdon wrote:
It is rather difficult to "make up" and SSN. Like credit card numbers,
they have checksums. A bogus SSN will drop a flag the moment it enters
an SSN-savy computer.

*BZZZRRRTTT*

http://ssa-custhelp.ssa.gov/app/answers/detail/a_id/248

SSNs have no checksums or check digits whatsoever.

Thank you for playing; the exit is - that way.