Show or hide your caller ID when making calls.
1. From the home screen, select the  Settings app.
2. Scroll to and select Apps, then scroll to and select Phone.
3. Select Show My Caller ID, then select the  Show My Caller ID switch to turn caller ID on or off.Â
Note: To block Caller ID on a per-call basis, dial *67 or #31# before the 10-digit phone number. (Examples: *679995554444 or #31#9995554444). To unblock Caller ID on a per-call basis, dial *82 before the 10-digit number. (Example: *829995554444)