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  2. List of Missouri area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Missouri_area_codes

    This is a list of telephone area codes in the state of Missouri. The area codes are allocated within the North American Numbering Plan (NANP) . The two original area codes for Missouri in 1947 were 314 and 816.

  3. Area codes 816 and 975 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_816_and_975

    Area codes 816 and 975 are telephone area codes in the North American Numbering Plan (NANP) for most of the Missouri side of the Kansas City metropolitan area, the St. Joseph area, and all or part of 15 surrounding counties in northwestern Missouri.

  4. List of North American Numbering Plan area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_North_American...

    Missouri (Kansas City, St Joseph, Independence, Harrisonville, and parts of west-central Missouri) 1947: 1950: split to create a part of 417; 1997: split to create 660; 2023: to be overlaid by 975; 817: Texas (Fort Worth, Arlington, Grand Prairie, Grandview, Weatherford) 1953: created from parts of 214 and 915; 1957: split to create a part of 806

  5. Area code 660 - Wikipedia

    en.wikipedia.org/wiki/Area_code_660

    Area code 816 served points generally north and west of Columbia and Jefferson City, while area code 314 served the eastern third of the state, including St. Louis. In 1951, a third NPA with area code 417 was created for southwestern Missouri. This reduced 816 to the northern third of Missouri, including the Kansas City metropolitan area.

  6. Telephone exchange names - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange_names

    Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]

  7. Area code 913 - Wikipedia

    en.wikipedia.org/wiki/Area_code_913

    Map of Kansas with area code 913 in Red. Area code 913 is the telephone area code in the North American Numbering Plan for northeastern Kansas.The numbering plan area (NPA) consists of a small ribbon of eight counties bordering Missouri, an area largely coextensive with the Kansas portion of the Kansas City Metropolitan Area.