The vast majority of my robo call match the first 6 digits of my number. They try hard to look local. My number is from Google voice, so it isn't really like th

The vast majority of my robo call match the first 6 digits of my number. They try hard to look local. My number is from Google voice, so it isn't really like the normal local numbers - so I'm safe ignoring them. I have yet to have a legit call that matches the first six digits. But what about the people who really do have a local number? Any call from a neighbor or local business is likely to look like the robo calls. Ignoring those can be a pain. Do not call list? Any bets that it is harvested and used as a call list be companies out of the country?