CallShield

CallShield is a call blocker for android.
A call is blocked if de the caller id starts with any number included in the block list.
This behavior could be changed in general preferences for doing an exact matching.
For adding a number to block list, first you need to include it in your contacts.
A blocked calls log is saved and a notification is showed when a call block ocurrs.
Xposed can be user for earlier block.

This is the link to the current release of CallShield