Ross Handler shows us how to block your cell phone number for outgoing calls. First call your provider and let them know you want all of your outgoing calls to not be registered onto some one else's caller I.D. They will gladly do that for you. But if you want to just block individual calls, and not all your outgoing calls, dial *67 before dialing in the person your calling's phone number. You will not hear a 'beep' when you are dialing *67, but keep proceeding and the call will go through and that way the person you are calling will not see your phone number.