How to block unknown calls on your Android
Tap the phone icon on your Android, which is usually at the bottom of the home screen.
Tap the three dots at the top of the Phone app screen.
Tap “Settings” in the dropdown menu.
Tap “Block numbers” and then toggle the button beside “Block unknown callers” to green.
You can already do this on Android.
How to block unknown calls on your Android Tap the phone icon on your Android, which is usually at the bottom of the home screen. Tap the three dots at the top of the Phone app screen. Tap “Settings” in the dropdown menu. Tap “Block numbers” and then toggle the button beside “Block unknown callers” to green.