Aug
10

Invalid or Impossible Social Security Numbers

Social Security Numbers having the following characteristics are invalid or impossible: AREA, GROUP, or SERIAL are composed of all zeroes (e.g, 000-45-6789, 123-00-6789, 123-45-0000) AREA number 666 (never have and never will be issued) AREA numbers 700 to 728 (Railroad workers through July 1, 1963, then discontinued) AREA numbers 900-999 (not valid SSNs, but were used […]