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  2. List of California area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_California_area_codes

    Numbering plan areas in California (blue) and border states. This map is clickable; click on any region shown to visit the page for those area codes. In 1947, the American Telephone and Telegraph Company (AT&T) devised the first nationwide telephone numbering plan and assigned the original North American area codes.

  3. Area code 949 - Wikipedia

    en.wikipedia.org/wiki/Area_code_949

    Area code 949 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of California in southern Orange County. The area code was assigned on April 18, 1998, to a numbering plan area that resulted from a boundary change of area code 714 to exclude the southern cities of Orange County.

  4. File:Area code 949.svg - Wikipedia

    en.wikipedia.org/wiki/File:Area_code_949.svg

    If this map is the primary area code map of California (master map), no area code appears in red. Map is correct as of 2023-07-02. To make changes, updates, and replacing the lesser maps (the ones for a specific area code block), this file uses CSS to define the colors for each region.

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

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

    1955: split to give New Brunswick its own 506 area code; Newfoundland was added to the service area when it joined Canada in 1949. When 506 was created, Newfoundland was assigned to the new code along with New Brunswick. In 1962, Newfoundland received its own code, 709. 2014: overlaid by 782; 851 reserved as a third area code for the region. 903

  6. Area codes 714 and 657 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_714_and_657

    This map is clickable; click on any region shown to visit the page for those area codes.Area codes 657 and 714 are shown in red. Area codes 714 and 657 are telephone area codes in the North American Numbering Plan for the southern part of the U.S. state of California .

  7. Kaiser Permanente - Wikipedia

    en.wikipedia.org/wiki/Kaiser_Permanente

    Kaiser Permanente (/ ˈ k aɪ z ər p ɜːr m ə ˈ n ɛ n t eɪ /; KP) is an American integrated managed care consortium headquartered in Oakland, California.Founded in 1945 by industrialist Henry J. Kaiser and physician Sidney R. Garfield, the organization was initially established to provide medical services at Kaiser's shipyards, steel mills and other facilities, before being opened to the ...

  8. Tustin, California - Wikipedia

    en.wikipedia.org/wiki/Tustin,_California

    Area code(s) 657/714, 949: FIPS code: 06-80854: ... Kaiser Permanente/Kaiser Foundation Hospitals ... At the time of his appointment, there were no police ...

  9. Area codes 408 and 669 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_408_and_669

    Until the late 1970s, central office code protection was maintained between area codes 415 and 408, so that Telephone numbers were not duplicated across, and subscribers could dial seven-digit San Francisco or Berkeley numbers without dialing an area code. Population growth, facsimile machines, and pagers caused demands for numbers to outrun ...