I think I got one of those calls a while ago. My wife is abed, not feeling well, so I picked up the phone after the first ring. Caller ID does not show on this phone. The first question the female caller asked would normally be answered "yes," but I avoided that answer. The next question was, "Are you (my name)?" Not thinking, I avoided saying "yes,", but replied "That is affirmative." The caller immediately hung up. I checked the caller ID on another phone after the call. It said "Valparaiso IN 219-465-1713." I believe that is probably spoofed. I believe that area code is in Ohio.
It will be interesting to see what comes of it.