http://www.ssa.gov/pubs/10002.html
describes how SSNs are assigned as follows
begin quote
What Does Your Number Mean
The nine-digit Social Security number is divided into three parts:
* The first three digits are the area number. If your Social
Security number was assigned before 1972 when Social Security cards were
issued by local offices, the area number reflects the State where you
applied for your number. If your number was assigned in 1972 or later
when we began issuing Social Security cards centrally, the area number
reflects the State as determined by the ZIP code in the mailing address
on your application for the number.
* The middle two digits are the group number. They have no
special geographic or data
significance but merely serve to break the number into
conveniently sized blocks for orderly issuance.
* The last four digits are serial numbers. They represent a
straight numerical sequence of digits from 0001-9999 within the group.
end quote.
Like Zip codes the leftmost digit represent (with small exceptions) a
region of the country (also see the various tables in the Statistical
Abstract of the US). Each Region was about 1/10 of the pop when they
were assigned.
0 is New England (ME, NH, VT, MA, RI, CT)
1 is Middle Atlantic (NY, NJ, PA)
2 is the upper South
3 is the deeper South
etc.
Art
Donald Burrill wrote:
> On Sat, 18 Jan 2003, Karl L. Wuensch wrote in part:
>
>
>>... since the first three digits of SSN identify the region of the
>>country where the student was a resident when the SSN was assigned.
>
>
> Has this always been the case, or did it only begin some time after the
> SS system was set up? I originally supposed that some such thing as you
> describe (the first 3 digits being a kind of area code) ought to be the
> case, but this notion was belied by the fact that other SSNs that I knew
> of (my father's, my mother's, my aunt's -- I'll have to ask my sisters)
> had different first-3-digits from my own SSN.
>
> -----------------------------------------------------------------------
> Donald F. Burrill [EMAIL PROTECTED]
> 56 Sebbins Pond Drive, Bedford, NH 03110 (603) 626-0816
>
> .
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