A free app for Android, by RevolutionX Apps.

This is the best way to protect yourself from unwanted calls. Call Blacklist lets you block calls from unwanted numbers. It has a simple and intuitive interface that makes it easy to use.How to UseTo use Call Blacklist, you first need to install it. You can do so by downloading it from Google Play.Once you have it, you can add the numbers you want to block by going to the settings and adding the contacts. You can add them by using the contacts or by searching them in the directory.To block a number, you need to enter it in the phone number field. You can also add them to your blacklist or whitelist.