In order to block your phone number when dialing out, you must first press *67, and then dial the number. This allows you to call someone without your phone number being available to the person you are calling.
You cant View it because of Privacy Laws but if the number keeps calleing you or prank calling you you can call your service provider and tell them to block it. You Cant see the Number Because of Privacy Laws but you can block it by calling your service provider and tell them to block it.
What you do is dial *67 in front of the number you want to call. If you ever prank call someone with this strategy, it will come up as "restricted" on the other line's screen. Hope the person you're prank calling doesn't know it was you! :)