SSN numbers are good for 999,999,999 people alive or dead. At some point the US will hit that, right? Do we start reusing numbers? Sounds like a disaster waiting to happen.
SSN numbers are good for 999,999,999 people alive or dead. At some point the US will hit that, right? Do we start reusing numbers? Sounds like a disaster waiting to happen.
But that would mean there’s already duplicates in use as you’d be limited to 90 million rather than 900 million.
https://en.m.wikipedia.org/wiki/Social_Security_number#Valid_SSNs
https://www.investopedia.com/terms/l/luhn-algorithm.asp#:~:text=The Luhn algorithm is used to check or validate identification,was input and processed accurately.
More info there.
From the first link.
From the second.
Yeah, personally, I have questions about the luhn check myself. (I am not in a state to research more this evening, unfortunately.)
I’ll save you the bother. It doesn’t have one. :)
If it did, there wouldn’t be enough numbers for everyone to have a unique one.