Without knowing why you want the headquarters or executive office number have you tried contacting your local office.
In most countries, telephone numbers are assigned in blocks to telephone companies, which then give out the numbers to their customers. A number is "allocated" if it is in a block that has been assigned to a telephone company.
If your telephone provider offers call blocking, you can block a toll-free number the same way that you block a regular number.
How can I block a number on the telephone
In some countries the same people who supply your telephone service can also block some numbers from calling your number. Talk with the telephone company about what can be done
Mostly offices, including Senators offices.
UK telephone area code 0161 is Manchester, but 0161 553 is an invalid number block.
You can normally find out the owner of a block of telephone numbers from the telecoms regulator for whichever country you are talking about. However, it is rarely a reliable indicator as most countries now let people take their number with them when they change networks.
To block your telephone number for a call, dial *67before dialing the telephone number.To unblock your number for any call (if you have a blocked line), dial *82 before dialing the telephone number.If this is regarding MetroPCS' Screen-it feature:Turn Screen-it OFF for all calls - Dial *85 and TALK from your phoneTurn Screen-it ON for all calls - Dial *65 and TALK from your phone
If you can either visit your bank branch or telephone them that would be quicker. If you wish to send a letter, you will need to include your bank account number, the reason why you want a change of PIN and of course your contact details such as your address and telephone number. You cannot block a PIN number but request a new one to be posted to you. You can stop the card should the details of your PIN be in the hands of another.
The question is unclear. Usually you call toll-free numbers, not the other way around. Perhaps you mean, "how can I stop unsolicited phone calls?" Call your service provider for the answer to this one.
110-block is for data networking cable. The 66-block is for telephone cable.
Don't answer it! It's phishing..Someone is calling you trying to get your information, just ignore them or mark them as "do not answer", or you can also block them..whatever you do..DON'T ANSWER!