The simplest way to block your number is by adding *67 to any phone number you call. You can block your number permanently by asking your service provider or changing your phone's settings.

There are several steps you can take to block a number on a landline phone and reduce the amount of spam calls you receive.

Here's how to block numbers on your iPhone the right way: What you need to do to avoid spam and calls and texts from specific contacts.

Kurt "Cyberguy" Knutsson outlines the simple steps to block unknown calls on your Android and iPhone so you can avoid those spam calls.

Here’s how: Block calls from your smartphone Your phone has built-in security tools to protect you from scammers, and you should get to know one of the most basic: the block function.

Don't worry about downloading apps -- your iPhone already has several tools to block all those annoying calls and texts from random numbers.

If you receive unwanted calls to your phone number on an iPhone, texts or iMessages in the Messages app, or unwanted incoming calls in FaceTime, you can block them by phone number or email address ...