How Do You Block Your Cell Number When Calling Someone?by Riz Khan
Wireless service providers offer a convenient way of blocking the caller ID on a cell phone. When you block your caller ID, the person you are calling will not be able to see your phone number. This is a useful feature that can prevent your phone number from being shown when you're making inquiries about a particular product or service, or when you're calling a friend or family member and don't want the person you're calling to know it is you.
Contact your network carrier to permanently activate caller ID block on your phone. This feature is also called a line block and is offered by most wireless carriers for fixed monthly charges.
Press "*82" before dialing any phone number to deactivate caller ID block only for this call after permanent caller ID block has been set up on your phone.
Activate caller ID on a per-call basis, i.e. only for one phone call, by pressing "*67" on your phone followed by the phone number to which you do not want to display your caller ID.