Depends greatly on the service provider really. Cox sends out a false location, I looked once and it said that I am in Chicago I think it was. Actually live in Phoenix so that is a huge difference.
Now of course using a cable modem so it is a static IP, unless Cox changes it or turning the modem off and on means there is a new IP address. Maybe I should ask about that, it may be an interesting thing to add to a story sometime.
Anyway there is one thing to keep in mind, dial up modems give you a different IP every single time you log in. Going to a wi fi center does the same thing. You could have four emails from the same computer and still have four IP addresses. In the case of a wi fi IP, you may get the address but it won't do you any good because the person sending the emails doesn't live there. Didn't even have to go inside the building to get internet.
I've scored a few of your stories 5, too. Your writing is damned good, if you didn't totally suck as a human being youd be great. You remind me of Elmore Leonard. JamesBJohnson
I guess I'm not a secret anymore, ya'll love me.