If you ever see the caller id with a city in all caps its a collector. They put in a nearby city to make you think its a nearby call. They do it all caps with a state as well. I saw one with MICHIGAN and I thought it was a call from a state agency; nope, it was a collector....
They called my number 3 times today while I was gone, I called them back and they asked for someone who used to live here a few years ago. I asked them to take my number off of their call list and they did.