Learn how to block numbers on your iPhone through the Phone app, the Facetime app and through your messages.

Other Ways to Block Your Number AKA Make a Private Call If your cell phone carrier does not allow you to block your number, there are still a few timeless methods that work for making private calls.

Tap Block number to add the number to your Block list or tap Report number if you feel the call is fraudulent, and then select a category, such as General Spam, Scam or Fraud, or Telemarketer.

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