This is a bit of an odd question, but here goes.
I receive emails from a business associate with headers among others that does not make sense.
As I understand AT&T dialup services seemingly designate server names by region.
e.g. the headers contain
No one in his right mind will dialup to different state access numbers while in yet another state.
My question is: I am right or wrong to assume that these servers are designated only for dialups in that specific state and area and how do I verify it?
Solving both gets the points.