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A listing of each area code in Canada plus printable area code maps. The list includes area codes by province/territory as well as by number
Area code lookup. Ontario is currently using 14 area codes. All phone area codes in the Ontario with major cities covered.
Area code lookup for US cities and an area codes locator to find the location of area codes. Complete area code list for the US and Canada
Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits. A numbering plan area with multiple area codes is called an overlay. Area codes are also assigned for non-geographic purposes.
231 Area code map Where is the area code 231 located in Michigan, United States? Area Code 231 coverage is shown in green.
Telephone numbers in Canada follow the fixed-length format of the North American Numbering Plan (NANP) of a three-digit area code, a three-digit central office code (or exchange code), and a four-digit station or line code.
Area code 231 is a telephone area code in the North American Numbering Plan (NANP) for the northwestern portion of the Lower Peninsula in the U.S. state of Michigan, History.
