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Root Call Blocker?
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Popularity Score: 6
This app was mentioned in 6 comments, with an average of 1.33 upvotes
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Alright, so OP you are awesome for exporting this list regularly. I've really been wanting to start managing this just as a personal point of pride in blocking robocalls.
I've been testing your list since your previous release in combination with <strong>Root Call Blocker</strong>. The app is free but the Pro version allows you to block all calls from a specific contact group which seems to be working.
That also seems to be the only no-limit way to en-masse block these numbers.
The only change I can't figure out how to do is to make sure that when the contacts are imported they don't show up in the all contacts list. Instead I have to go to the old contacts.google.com format and select them and uncheck "All Contacts" (The new view forces you to do one at a time).
https://play.google.com/store/apps/details?id=fahrbot.apps.rootcallblocker.beta&hl=en
This seems like it'll do exactly what you want. First google result for "Android root call blocker."
Root your phone, install Root Call Blocker