While you are correct about the weirdness of Obama’s documents, ssn are not unique to a person. There are 340 million Americans (roughly) alive today and (due to how numbering works; it’s not random) only 358 million total available. It comes out to something like the same number had been used 5 or 6 times for different people.
Duplicates were especially common around NY and the eastern seaboard because the first three numbers were for geographical location of issuance and the second set month and year.
So, when you add in dead people, recycling of numbers is common. Several people alive today probably have your number.
Note, this is not to discount your legit observation, but duplicate SSN is not, in and of itself, a red flag.
I think you just answered my question in post #32….
HAVE done ACCOUNTING AND PAYROLL since 1957.
NEVER heard any number was used multiple times.
If the SS numbers are 9 digits long, there are 1 billion combinations. Why do you say only 358 million total available?
Also, I read that as a result of 0bama’s CT number being found out, the SSA doesn’t group the numbers geographically any more.