How can I block unknown texts and calls?

[AC Question]

Blocking unknown texts and calls

How can I block unknown texters and callers? I know how to block them once they have already gotten through. But I would rather filter them so they don't come through in the first place. Verizon Samsung Galaxy S4.

 

[Crashdamage]

Re: Blocking unknown texts and calls

Advanced Call Blocker will do that:

https://forums.androidcentral.com/e....wahooka.advanced.call.blocker&token=tfHzmTLt

Android since v1.0. Linux user since 2001.