Am in Toronto. Call today from 301 - as per call display. Was curious so answered. When I picked it up, a few seconds of dead air and then a recorded female voice said Good Bye, and the call disconnected.
301-000-0000 keeps calling. If we answer, they say nothing and hang up. If we don't answer, our machine picks up and someone, usually a woman, says, "Hello? Hello?" Then nothing else. It is getting very annoying. I've reported them to the "Do Not Call Registry" folks.