A free program for Android, by Spider Media Tech.

The Caller ID Name and Location is a useful app for users to track and block unwanted calls and text messages. The user can add the contact to the blacklist and will not receive any more phone calls from that number. It will display the name and location of the caller when you receive a phone call. You can also search for contacts by entering their name into the search box.

Caller ID is an app that displays the name and location of the caller. You can also add the number to the blacklist to block phone calls from that number.

The app can also display the current time and date.