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  2. 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] As of July 2023, California has 38 active area codes. Stockton, Modesto, Merced, Turlock; the northern San Joaquin Valley and the central Sierra ...

  3. Richmond District, San Francisco - Wikipedia

    en.wikipedia.org/wiki/Richmond_District,_San...

    UTC−7 (PDT) ZIP codes. 94118, 94121. Area codes. 415/628. [3] The Richmond District is a neighborhood in the northwest corner of San Francisco, California, developed initially in the late 19th century. It is sometimes confused with the city of Richmond, which is 20 miles (32 km) northeast of San Francisco; accordingly, the neighborhood ...

  4. Area code 404 - Wikipedia

    en.wikipedia.org/wiki/Area_code_404

    Area code 404. Area code 404 is a telephone area code in the North American Numbering Plan (NANP) for Atlanta, Georgia and its closest suburbs. This comprises roughly the area encircled by Interstate 285. It is an enclave area code, surrounded by area code 770, which serves most of Atlanta's suburbs. Both 404 and 770 are overlaid by area codes ...

  5. Original North American area codes - Wikipedia

    en.wikipedia.org/wiki/Original_North_American...

    The red fields are the NPAs that hosted the Regional Centers for toll-switching established in the General Toll Switching Plan of 1929: [2] New York City (212), Los Angeles (213), Dallas (214), Chicago (312), St. Louis (314), and San Francisco (415) in the multi-NPA states, and in Denver (303) and Atlanta (404) in states with just a single area ...

  6. Area codes 415 and 628 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_415_and_628

    Area codes 415 and 628. Coordinates: 38°N 122.6°W. Numbering plan areas in California (blue) and border states. Area codes 415 and 628 are shown in red. Area codes 415 and 628 are telephone area codes in the North American Numbering Plan (NANP) for the city of San Francisco and its northern suburbs in Marin County (across the Golden Gate ...

  7. Area codes 408 and 669 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_408_and_669

    Area codes 408 and 669. Area codes that serve the southern San Francisco Bay Area, California. 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.Area codes 408 and 669 are shown in red. Area codes 408 and 669 are telephone area codes in the North ...

  8. San Francisco Bay Area - Wikipedia

    en.wikipedia.org/wiki/San_Francisco_Bay_Area

    The San Francisco Bay Area, commonly known as the Bay Area, is a region of California surrounding and including San Francisco Bay. [8] The Association of Bay Area Governments defines the Bay Area as including the nine counties that border the estuaries of San Francisco Bay, San Pablo Bay, and Suisun Bay: Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara, Solano, Sonoma, and San Francisco.

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

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

    area code 387 is reserved as a fifth code for the region; 648: not in use; available for geographic assignment 649: The Turks and Caicos Islands (all) June 1, 1997: split of 809; 650: California (Daly City, South San Francisco, Palo Alto, Redwood City, Menlo Park, Mountain View, San Mateo, Santa Clara) August 2, 1997: split of 415; 651