1. From the home screen, tap the Call icon.
   
2. Tap the Settings icon.
   
3. Tap Call settings.
   
4. Tap Caller ID.
   
5. Tap Hide number.
   Note: To block your Caller ID on a per-call basis, dial *67 before the 10-digit phone number.
   
6. To turn on Caller ID, tap Caller ID.
   
7. Tap Show number.