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

When you block someone's number on your iPhone, that number can't call, text, or FaceTime you. It won't affect third-party ...

We’ve all been there — your phone buzzes, and it’s yet another scam call or an unknown number you’d rather not deal with. Or maybe it’s persistent texts or emails from someone you’ve been trying to ...