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      • Area code 650 is a telephone area code in the North American Numbering Plan (NANP) for the San Francisco Bay Area in the U.S. state of California.
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  1. Area code 650 is a telephone area code in the North American Numbering Plan (NANP) for the San Francisco Bay Area in the U.S. state of California.

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  3. Area code 650 is a telephone area code in the state of California, United States. It was split from 415 in 1997. It serves the area covering most of San Mateo County, which is located in the San Francisco Bay Area.

  4. Area code 650 is a telephone area code in the North American Numbering Plan (NANP) for the San Francisco Bay Area in the U.S. state of California.

  5. 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 .

  6. 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] As of July 2023, California has 38 active area codes.

    Area Code
    Service Area
    Notes
    Stockton, Modesto, Merced, Turlock; the ...
    Split from 415 on October 26, 1957; split ...
    Much of the City of Los Angeles and ...
    October 1947; split numerous times since ...
    Sacramento and most of the Sacramento ...
    overlay with 916, started service on ...
    The western and southwestern parts of Los ...
    Split from 213 on November 2, 1991;
  7. 4 days ago · 650 is an area code in California, US, serving San Francisco and nearby cities. Learn about its location, time zone, map and major communities.

  8. This is a list of North American telephone area codes in effect for the North American Numbering Plan (NANP). The area to which an area code is officially assigned is known as a Numbering Plan Area (NPA). An area code is part of a telephone number in the United States, Canada, and the Caribbean.

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