Samsung Galaxy S4
You can turn off your own caller identification, your number will then not be shown at the receiving end when you make a call. Your number is only hidden when you make voice calls not when you send messages.
1. Find "Caller ID"
- Press Phone.
- Press .
- Press Call settings.
- Press Additional settings.
- After a moment the current settings are displayed.
- Press Caller ID.
- Press Hide number or Show number.
- Press to return to the home screen.