These are instructions on how to disable your Caller ID to block your phone number on the iPhone.
Step One
Tap to open Settings from your SpringBoard.
Step Two
Choose Phone from the Settings menu.
Step Three
Select Show My Caller ID from the Phone menu.
Step Four
Tap the Show My Caller ID switch to disable the feature.
Step Five
Now when making a call the recipient will be not be able to see your phone number.
Step One
Tap to open Settings from your SpringBoard.
Step Two
Choose Phone from the Settings menu.
Step Three
Select Show My Caller ID from the Phone menu.
Step Four
Tap the Show My Caller ID switch to disable the feature.
Step Five
Now when making a call the recipient will be not be able to see your phone number.