There are many privacy problems in phone call blockers such as TrueCaller leaking your phonebook (thread Does TrueCalller App leak your phonebook?) in Android phonebook blockers. I really think the support should be native. I would like to understand why it is not at the moment.

There are many threads about the feature in non-native targets by 3rd party apps but none of those threads offer a simple, strong-security and strong-privacy approach for the problem: thread Android app to to block international calls from a particular country.

Example block function: block all UK phone numbers by Regex

  • +44.* so matching UK country code and any other letter after it

OS: Android Oreo 8.0
Phone: Oneplus 3T

  • Natively? Not that I know of.
    – user202027
    Oct 17, 2017 at 15:13
  • @SiXandSeven8ths Yes, exactly, therefore this thread. Oct 17, 2017 at 16:25


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