Go to the call log list and select check box against the number to block.

If you are using an earlier version of Android, to unblock a number: However, the screens and options may differ on different devices. The steps to unblock a number are the same. Note: Samsung Galaxy J5 supports the above-mentioned steps.

From the options displayed in the pop-up screen, toggle the Call Block option to ON.

From the resulting page, tap More on the top right corner and select Block/Unblock number, as displayed in the illustration below.

Go to the call log list and tap the number to block.

In the earlier versions, the option to block callers was Add to Reject List. This feature is available on Android 6.0 and above. It is the easiest way to block unwanted calls. We have tested these steps in phones like Moto G, Moto G4, Samsung Duos, Samsung Galaxy etc. Let us take a look at how to avoid the unwanted calls by blocking the callers. I am sure, most of our readers can very well connect with my annoyance. And I just feel if I can block calls from certain phone numbers. Most of the times the person at the other end would be a tele-caller and wanted to know if I would be interested in availing loan, help the under privileged, or have a free car service! Receiving calls from unknown numbers, especially when you are deep in your work, driving, or cooking can be very annoying.

If an unknown number calls more than three times, then I do attend the call assuming it to be an important call.

I normally do not take calls from unknown numbers, not even from friends who change their phone number often, unless they update me on the new phone number.

How to block numbers on android