You can block a phone number or existing contact on your iPhone from the Phone app or your Contact list.

There are several ways to block a phone number on your iPhone. You can do it within the Settings app, or the Phone, Messages, and FaceTime apps.

How Can I Block Someone's Number on My iPhone?. One of the new features in iOS 7 for the iPhone is the ability to block any number from contacting you.

How To Block Callers / Spam Inside iPhone’s Phone App There are several ways how to block someone on iPhone. This first step will block specific numbers from calling your iPhone. Once you’ve followed ...

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

Yes, your iPhone can block spam calls and texts with tools you already have installed -- as well as third-party app options.

The iPhone doesn't actually provide a way to block phone numbers. You can tap "Decline" when the phone rings, but you can't just tap a "Block" button to keep someone from calling anymore.

How to block calls with no Caller ID When you block a call from a telephone number that is displayed, this has to be done for each individual call. Luckily Apple has settings built into the iPhone ...

On Android, it’s similar, you tap on the caller’s name, then long-press the number and tap “Block/report spam” (note that this procedure can vary slightly from device to device on Android).