from: http://genealogy.about.com/od/social_security/a/numbering.htm
“Since 1972, when SSA began assigning SSNs and issuing cards centrally from Baltimore, the area number assigned has been based on the ZIP code in the mailing address provided on the application. The applicant’s mailing address does not have to be the same place as their residence. Thus, the Area Number does not necessarily represent the State of residence of the applicant, either prior to 1972 or since.”
So why did Obama have a Connecticut mailing address in 1977?
Uh, cuz that's the address of his ARO?