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Using the format specified by the International Telecommunication Union (ITU) in Recommendation E.164 for telephone numbers, a Canadian number is written as +1NPANXXXXXX, with no spaces, hyphens, or other characters; e.g. +12505550199.
Belgian telephone numbers consist of three parts: First '0', secondly the "zone prefix" ( A) which has one or two digits for landlines and three digits for mobile phones, and thirdly the "subscriber's number" ( B ). Land lines always have nine digits. They are prefixed by a zero, followed by the zone prefix.
One of the main reasons these ranges exist is to avoid accidentally using real phone numbers in movies and television programs because of viewers frequently calling the numbers used. In North America, the area served by the North American Numbering Plan (NANP) system of area codes, fictitious telephone numbers are usually of the form (XXX) 555 ...
rarely used, but serves some satellite phones in the Canadian high Arctic Canadian TWX service used area code 610 until 1992, when it was exchanged for 600. 2015: 622 was activated for Canadian non-geographic use
These codes are used for fixed or mobile devices, and not assigned to rate centers. As addresses, they may or may not traverse the public switched telephone network (PSTN). Applications include the use as personal 500 numbers. Some carrier-specific services have used area code 700. In Canada, area code 600 is used for non-geographic applications.
The problem was exacerbated by Canada's inefficient system of number allocation. Unlike the United States, Canada does not use number pooling as a relief measure. Every competing carrier is assigned blocks of 10,000 telephone numbers, which correspond to a single central office prefix, in every rate centre in which it plans to offer service ...
Canadian numbers are an exception as they are drawn from the same SMS / 800 pool as other North American Numbering Plan countries; the +800 Universal International Freephone Number is an exception as these work from multiple country codes.
The National Do Not Call List (DNCL) (French: Liste nationale de numéros de télécommunication exclus) is a list administered by the Canadian Radio-television and Telecommunications Commission (CRTC) that enables residents of Canada to decide whether or not to receive telemarketing calls.
Canada does not use telephone number pooling as a relief measure. Each CLEC is allocated blocks of 10,000 numbers (corresponding to a single three-digit prefix) for every rate centre where it offers service, even in the smallest hamlets.
Area code 600 is a telephone area code in the North American Numbering Plan for non-geographic use in Canada of specialized telecommunication services such as telex applications, caller-pays cellular, ISDN, and mobile satellite communication services.