Caller ID is a free feature. When a call comes in, you can see the number or name of the person calling, as long as the caller is not blocking the information. Your PIX Wireless number is also visible to the people you call, if they also have Caller ID.
Blocking Caller ID
You can block your caller ID directly on your phone by dialing *67 before the number you’re calling. This only affects one call at a time, so you have to dial the code before every call you want to block your Caller ID.