You cant
Without knowing why you want the headquarters or executive office number have you tried contacting your local office.
Without knowing the mass of the block that cannot be calculated.
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.
When someone doesn't want to talk to you, he or she will block your number. You won't be able to call that person.
how to block messages of unknown person on facebook
Without knowing who made it the question can't be answered.
You can block a Blackberry without a sim card,using the serial number.
There are a number of ways to block phone number depending on what type of phone you have. Usually your manual will give the specific code to do so.
Well... You click in imfomation on the topor bottom left of the page and scroll down until it says block person click on it... This will not provet that Persiffic Persin trying to call you... It will come up as ( when this person rings you) *blocked number... If you are still not happy with this you can change your number and block that person all together... Hope this helped you :)
if you dont want them to call you, block their number
You can call someone without showing your own number by dialing star symbol67 before you dial the phone number you wish to call. this blocks your number just on this call, not permanently. If you want to block your number permanently go into your phone's menu settings and look for the option to block your number.
call the service provider and give them the number