A recording called me and told me I was a finalist to win a brand new car!
708-883-7634 is the number the robo caller tells you to call back and ask for ext 200.
It just seems to be one guy, I think he changes his voice a little or puts his wife on the line when you ask to speak to different ext's.
He also just has a regular ans machine as a voice mail the password 1234 (# at the end maybe) during the announcement. The problem is he can hear you listening to his messages out loud and sometimes he will unplug it : D . but you might be able to get a few other peoples numbers and tell them it's a scam or something even more creative I donno.
He also seems to have a block of numbers set aside I scanned a few from where he called me and all the CID's come back as PRIZE ENTRY/CLAIM CENTER
All of these came up busy so I stopped scanning .