How does the social security numbering system work?

I hear your birthplace gives part of it.


I was born in erie pa, with 189-66 being the first digits.How does the social security numbering system work?
SSNs are not assigned consecutively; the first was not the lowest number, and the most recent is not the highest. They are assigned regionally and in batches.


The nine-digit SSN, which has been issued in more than 400 million different sequences, is divided into three parts: area numbers, group numbers and serial numbers.