Caller ID Blocking
To Deactivate Caller ID on individual outbound calls:
Press *67.
Dial the number.
Press SEND. The words "Private," "Anonymous," or some other indicator will appear on the called party's Caller ID device instead of your wireless number.
To Deactivate Caller ID on all calls to a specific number:
Press *82 + the number + SEND.
Unfortunately I am not going to be of much help with that one.. I have never heard of that problem. If the phone isn't hacked I would call verizon. They should be able to help you out.