Call Block is a useful tool for blocking unwanted incoming or outgoing calls, including:
- blocking all numbers
- blocking numbers that are hidden / private
- blocking all unknown numbers - effectively allow only numbers that are in the contact list
- blocking any number you want by specifying it directly
- blocking range of numbers matching given prefix or suffix, for example:
0123* will block all the numbers that start with 0123
*789 will block all the numbers that end with 789
- viewing logs of blocked calls

Google Play Store link: https://forums.androidcentral.com/e...tails?id=net.devmain.callblock&token=ZR_mMI5s
- blocking all numbers
- blocking numbers that are hidden / private
- blocking all unknown numbers - effectively allow only numbers that are in the contact list
- blocking any number you want by specifying it directly
- blocking range of numbers matching given prefix or suffix, for example:
0123* will block all the numbers that start with 0123
*789 will block all the numbers that end with 789
- viewing logs of blocked calls

Google Play Store link: https://forums.androidcentral.com/e...tails?id=net.devmain.callblock&token=ZR_mMI5s