Eh, SSNs aren't linked to location in any usable way. Obviously your SSN will not change when you move cross-country (so they're not linked to current address), and I think they're only based on the mailing address entered when the card was applied for, which may not even be where you were born.
Geo-dependent, as in across the otherside of the globe maybe...
Nope; I moved out of the US 8 years ago and my SSN remains the same. My daughters both have US SSNs and they've never lived there; the younger one hasn't even visited the US once yet. If they do live there someday, they'll still have the same SSNs.