Reasons why you may want to conceal your cell number include :
You don't want the person you are calling to see that you've called them 10 times in a row .
You don't know the person you are calling and don't want them to have access to your number .
You are calling a business or an unknown number and don't want them to know your number .
If you decide that you would like to keep your cell phone number a secret , you will need to block your number . Blocking your number can be done temporarily or permanently . Temporarily blocking your number on a call by call basis is a good idea if there are only a few people whom you wish to hide your number from . To temporarily block your number so it is not displayed on the recipients caller ID simply dial *67 before dialing the number .
Keep in mind , you should know that when you use *67 to temporarily block your number there will be nothing to inform you that your number has been successfully blocked . Therefore , if you want to make sure it works , do a quick check and call your home number first before you attempt to use this service on someone else .
If you really want your cell number to be private , and wish to block your mobile phone number permanently , you will need to contact your wireless provider and request a "line block" . Once the line block has been established , your number will not appear to anyone . However , if , for some reason , you would like your phone number to be
displayed for the recipient , you can reveal your phone number by dialing *82 before dialing their phone number .
Finally , you need to know is that your cell phone number will not be blocked from any toll free numbers .
In addition , blocking your cell phone number may be a good idea if you are attempting to find out who owns a phone number by calling the mystery number back .