If you want to block a number on your iPhone, there are a few different ways to go about it.

  1. Open the Phone app and tap on the contacts icon.
  2. Swipe left to view the list of contacts and tap on the person you want to block.
  3. Tap on the three lines in the top right corner of their contact card and select Block Number from the options that appear.
  4. Enter the number you want to block into the text field next to Block Number and hit Block button.
  5. If you ever need to unblock that number, just go back into Phone app and tap on Contacts icon, then select that person and hit Unblock Number button at bottom of screen. ..