Use APKPure App
Get Simple Private Call Blocker old version APK for Android
Het blokkeren van private cijfers was nog nooit zo eenvoudig geweest!
Simple and free app for blocking private callers (without caller ID)!
No redundant settings, just enable or disable.
No ADS!
This app is open source:
https://github.com/pzienowicz/SimpleUnknownCallBlocker