How do I block my caller ID on my iPhone 4s?

It's possible to hide your Caller ID when making calls on your iPhone. In the Settings app tap on Phone, then tap on Show My Caller ID and turn it to OFF. (Incidentally, if you ever forget your phone number, you'll find it in here too).Feb 1, 2011 read more

Click on the gray Settings icon on your iPhone's home screen. Step. Scroll down to the third section of the screen and tap "Phone." Step. Tap the "Show My Caller ID" line. Step. Tap the "On" button next to "Show My Caller ID" to toggle the button to the "Off" position. read more

Blocking Your Caller ID For All Outgoing Calls. To block your Caller ID for all outgoing calls, on your iPhone, tap on Settings >Phone. There you will see the option Show My Caller ID. Switch it OFF and all your outgoing calls will have your number blocked until you re-enable the option to show it. Note: Some countries do not allow blocking your Caller ID. read more