August 16, 2003

Invalid Social Security Numbers

  1. All single digits are the same
  2. The number is 123-45-6789
  3. The number is 987-65-4321
  4. The number is 078-05-1120
  5. First three positions are 000
  6. First three positions are 666
  7. First three positions are 773 through 799
  8. Leading number of 8
  9. Leading number of 9
  10. Ending in 4 zeros
Posted by pscott at August 16, 2003 09:54 PM