It's a call center in Derby, Connecticut. I could hear many other operators talking on the phone in the background. The one who called me did not say anything, then hung up.

Same thing just happened to me at my work number. That is weird because not many people have this number and I actually live in Derby.

Mine was even stranger. I got a call from that number while I was out so my answering machine picked up. No message, just music until my answering machine disconnected the call.