Call blocker app for blocking numbers using the blacklist.

Features:
* Block a number using the blacklist.
* Block private calls or restricted calls (unknown caller id).
* Incoming call lock using area code prefix or suffix.
* Block unknown caller ids that are not in your contact list.
* Block contact or block multiple contacts.
* Block calls from all phone numbers.
* Switch call blocking on or off.
* Number blocker app for free download.