this one is dangerous. Our prefix is 751, and we are now getting dozens of these calls a day. Rob has voice mail, so if any are legit they can leave a message. I don't, don't answer and then block the number.
But... I was waiting for imagining to call me to set up ct's for my oncology doctor. They said they couldn't get thorough and mailed me a number to call. They, and 90% of the people around me have 751 prefixes.
I wish there was a real person to complain about too...
this was promising but haven't heard any follow up
https://www.theverge.com/2016/8/19/1...-call-blocking