So every SSN's first three digits tells where the number was filed for or requested from. It isn't "reserved for those residents" but it does indicate the location it was requested from.A Social Security Number (SSN) consists of nine digits, commonly written as three fields separated by hyphens: AAA-GG-SSSS. The first three-digit field is called the "area number". The central, two-digit field is called the "group number". The final, four-digit field is called the "serial number".
The area numbers are assigned to geographical locations. They were originally assigned the same way that zip codes were later assigned (in particular, area numbers increase from east to west across the continental US as do the ZIP codes). Most area numbers were assigned according to state (or territorial) boundaries, although the series 700-729 was assigned to railroad workers regardless of location (this series of area numbers was discontinued in 1964 and is no longer used for new SSNs). Area numbers assigned prior to 1972 are an indication of the SSA office which originally issued the SSN. Since 1972 the area number in SSNs corresponds to the residence address given by the applicant on the application for the SSN.
The day after New Year's 1996, operatives for Barack Obama filed into a barren hearing room of the Chicago Board of Election Commissioners.
There they began the tedious process of challenging hundreds of signatures on the nominating petitions of state Sen. Alice Palmer, the longtime progressive activist from the city's South Side. And they kept challenging petitions until every one of Obama's four Democratic primary rivals was forced off the ballot.
[ame="http://www.youtube.com/watch?v=Xdk0Bt3EbXI"]PolitiChicks Say Obama's Birth Certificate is Fake! - YouTube[/ame]
It is based specifically on the zip code from which the application was mailed.
Did you know that a single digit typo entering a zip code into the database would have changed Obama's Honolulu, HI zip code to that of Danbury, CT?