Stopping phone spam

For the past 2 years I’ve been using the free Nomorobo service to stop spam calls on my landlines, and it works fantastically. A few months ago I started using the paid Nomorobo app on my phone, and suddenly all those dumb spam calls have ceased. There are a number of phone spam eliminator apps, but Nomorobo is one that does not scarf up your friends’ phone numbers in order to make its white list. — KK