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The Government of Canada's Translation Bureau recommends using hyphens between groups; e.g. 250-555-0199. [2] 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.
Worldwide distribution of country calling codes. Regions are coloured by first digit. Telephone country codes, originally termed International Codes by the International Telegraph and Telephone Consultative Committee (C.C.I.T.T.) in 1960, [1] but also sometimes referred to as "country dial-in codes", or historically "international subscriber dialing" (ISD) codes in the U.K., are telephone ...
Canadian non-geographic tariffed: teleprinter, caller-pays mobile, etc. October 1, 1993: 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; 2023: 622 was overlaid with 633 for non ...
With the depletion of new numbers in area codes 312 and 773, an overlay of both of them, area code 872, was created in November 2009, beginning ten-digit dialing within the city limits of Chicago. The remaining area without an overlay in the northern part of Illinois, 708, eventually received such with area code 464 taking effect on January 21 ...
The parentheses were used originally to indicate that the area code was not necessary for local dialing. The NPA-part of the number has the formal format NXX, since 1995 identical to the format of central office codes. The Government of Canada's Translation Bureau also recommends using hyphens between groups; e.g. 250-555-0199. [43]
The largest telephone numbering plan in North American is the North American Numbering Plan (NANP), serving 25 regions or countries. Other countries maintain an autonomous numbering plan with distinct country codes within the international E.164 specifications by the International Telecommunication Union. Original North American area codes
Area code 630 is the parent area code of the numbering plan area, created in a three-way area code split of area code 708 on August 3, 1996, with the southern suburbs keeping 708 and the northern suburbs receiving 847. Within a decade, 630 was close to exhaustion due to the growth of the Chicago suburbs and the proliferation of cell phones and ...
Area code 312 is a telephone area code in the North American Numbering Plan for the city of Chicago, including downtown, the Chicago Loop, and its immediate environs. The numbering plan area is completely surrounded by area code 773 , which serves the rest of Chicago.