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  2. List of Texas area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Texas_area_codes

    Numbering plan areas and area codes of Texas (tan). This is a list of area codes in the U.S. state of Texas. The date of establishment of each area code is indicated in parentheses: [1] 210: San Antonio area; overlays with 726 (November 1, 1992) 214: Dallas area, overlays with 469, 972, and 945 (October 1947)

  3. List of California area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_California_area_codes

    The state of California was divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, and 916, for the southern, central, and northern parts of the state, respectively. [ 1 ] In 1950, the boundaries of the numbering plan area were redrawn to produce a division of the northern and central parts along a north–south ...

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

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

    851 reserved as a third area code for the region. 903: Texas (Tyler, Sherman, Longview, Marshall, Palestine, Jacksonville, Carthage, and Northeast Texas) November 4, 1990: prior to October 18, 1980, the area code served Tijuana, Mexico, and adjacent areas bordering the United States; split of 214; 2003: overlaid by 430; 904

  5. Area codes 213, 323, and 738 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_213,_323,_and_738

    Area codes 213, 323, and 738 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. They are assigned in an overlay complex to a numbering plan area (NPA) that comprises, roughly, the area of downtown Los Angeles City , as well as several southeast Los Angeles County cities, such as Bell and ...

  6. Telephone numbering plan - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbering_plan

    When dialing a telephone number, the area code may have to be preceded by a trunk prefix or national access code for domestic calls, and for international calls by the international access code and country code. Area codes are often quoted by including the national access code. For example, a number in London may be listed as 020 7946 0321.

  7. Area codes 214, 469, 972, and 945 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_214,_469,_972...

    Area codes 214, 469, 972, and 945 are telephone area codes in the North American Numbering Plan (NANP) for Dallas, Texas and most of the eastern portion of the Dallas–Fort Worth metroplex The area codes are assigned in an overlay complex to a single numbering plan area that was the core of one of the original area codes of 1947, area code 214.

  8. Area codes 760 and 442 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_760_and_442

    Area codes 760 and 442 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. These area codes serve an overlay complex that comprises much of the southeastern and southernmost portions of California. It includes Imperial, Inyo, and Mono counties, as well as portions of North County San Diego ...

  9. Area codes 916 and 279 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_916_and_279

    This map is clickable; click on any region shown to visit the page for those area codes.Area code 916 is shown in red. Area codes 916 and 279 are California telephone area codes that serve Sacramento, the state capital, and most of its suburbs. Area code 916 was one of the first three original area codes established in California in October 1947.