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A vertical service code (VSC) is a sequence of digits and the signals star (*) and pound/hash (#) dialed on a telephone keypad or rotary dial to access certain telephone service features. [1] Some vertical service codes require dialing of a telephone number after the code sequence.
Then establish the connection as usual by dialing 1, the area code, and the phone number to complete the call. Anonymous Call Rejection (*77) is offered to subscribers, so in some situations it is necessary to dial *82 in order to ring through and complete the call to those lines that subscribe to and enable anonymous call rejection.
The number for this facility varies with country and provider: United States and Canada: Vertical service code *69; 1169 on rotary phone/pulse dial telephones. The prompt voice behind most U.S. AT&T implementations of this feature is Pat Fleet. Where available, it is offered on a per-call charge (typically 50¢) or an unlimited-use monthly ...
Numbering plan area code The first NYX block is the numbering plan area code. When the second and third digits are the same, the code is an easily recognizable code (ERC). ERCs designate special services; e.g., 800 for toll-free service. The NANP is not assigning area codes with 9 as the second digit. [37]
Here's a list of scammer phone numbers and area codes to avoid answering if you don't know exactly who's calling. ... 30 Scam Phone Numbers To Block and Area Codes To Avoid. Show comments.
This list contains the mobile country codes and mobile network codes for networks with country codes between 300 and 399, inclusively – a region that covers North America and the Caribbean. Guam and the Northern Mariana Islands are included in this region as parts of the United States.
Automatic number identification (ANI) [1] [2] is a feature of a telecommunications network for automatically determining the origination telephone number on toll calls for billing purposes. Automatic number identification was originally created by the American Telephone and Telegraph Company (AT&T) for long distance service in the Bell System ...
Numbers within these test exchange block ranges are used for various types of local and long-distance testing; generally, this block includes a ringback number (to test the ringer when installing telephone sets) and a loop around (which connects a call to another inbound call to the same or another test number).