Can't tell you about the telephone exchanges right now as to which are local or not, but....
when you get there, open the telephone book up. Near the front pages you'll find several charts that show which exchanges are local to each other. Simply find the chart that has your exchange in it (I don't know what it'll be but it'll be on your phone in your room), then check the chart to see what other exchanges are local to that one.
You have to be careful. Some places in Kissimmee are local, but many are not. Many places in Orlando are local even though they're farther than Kissimmee.
I presume you're looking for local numbers for an internet conntection?