https://en.wikipedia.org/wiki/Social_Security_number#Valid_SSNs 9xx-xxx-xxxx(100m), xxx-00-xxxx (10m), 666-xx-xxxx (1m), 000-xx-xxxx(1m), xxx-xx-0000(0.1m) will not be issued. 999,999,999 -112,100,000 = 887,899,999 SSNs (plus multiple disqualified by 2nd/3rd group). 888m valid - 450m used = 438m available / 5.5m per year = 80 years. If re-issued 100 years after death, would support about 600M population.
On Tue, Apr 21, 2020 at 5:39 PM Ken Smith <[email protected]> wrote: > > 9 characters with 10 possible values = 10 to the 9th = 999,999,999 aka = 1 > billion. > Allow one position to be alphanumeric adds what? Does position matter? > Thought 10 to the 36th plus 10 to the 8th?? > > But if allow all alphanumeric = 36 to the 9th = ? > =Ken > > On Tue, Apr 21, 2020 at 1:03 PM Joe Monk <[email protected]> wrote: > > > 9 digits = 999,999,999. There afe only 350,000,000 in the USA. > > > > Joe > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
