This used to be a huge problem for me as well until TrueCaller came along. Spam calls have reduced to close to zero. Maybe one or two a month. The perceived dow

This used to be a huge problem for me as well until TrueCaller came along. Spam calls have reduced to close to zero. Maybe one or two a month. The perceived downside is that one has to share their contact list with truecaller. For me personally it's a perfectly reasonable price to pay for what I'm getting in return.