4 ms·
There’s less actually. Each state has its own unique 3 digit prefix.
by pjot 2y ago
There’s less actually. Each state has its own unique 3 digit prefix.
- SoftTalker 2y agoI don't think that's true anymore. I was born in the same state as my wife and we have different 3-digit prefixes. But I agree that there are some rules about the different parts of the number that further constrain the theoretical one billion limit.
- firesteelrain 2y agoSSA implemented randomization in 2011 to remove that artificial constraint. https://www.ssa.gov/employer/randomizationfaqs.html https://www.ssa.gov/employer/randomizationfaqs.html