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  2. List of California area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_California_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. 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 ...

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

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

    Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs do not permit the digits 0 and 1 in the leading position. [1] Area codes with two identical trailing digits are easily recognizable codes (ERC). NPAs with 9 in the second position are reserved for future format expansion.

  4. Category:Area codes in California - Wikipedia

    en.wikipedia.org/wiki/Category:Area_codes_in...

    Area codes 213, 323, and 738; Area codes 310 and 424; Area codes 408 and 669; Area codes 415 and 628; Area codes 510 and 341; Area code 530; Area code 559; Area code 562; Area codes 619 and 858; Area code 626; Area code 650; Area codes 714 and 657; Area code 661; Area codes 707 and 369; Area codes 818 and 747; Area codes 760 and 442; Area codes ...

  5. File:Area codes CA.svg - Wikipedia

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

    Map of California (in blue) and surrounding states showing telephone area codes, with this area code in red. 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.

  6. Area codes 408 and 669 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_408_and_669

    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 American Numbering Plan (NANP) in the U.S. state of California.

  7. Area codes 415 and 628 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_415_and_628

    Area code 415 was assigned to central California, south of area code 916, and north of area code 213. It stretched from Sacramento in the north to Bakersfield in the south. [2] 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-running dividing line.

  8. Area codes 909 and 840 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_909_and_840

    Area codes 909 and 840 are telephone area codes in the North American Numbering Plan for the far-eastern part of Los Angeles County, southwestern San Bernardino County, and a small portion of Riverside County in the U.S. state of California. Area code 909 was created on November 14, 1992, in an area code split of 909, and 840 was added to the ...

  9. Area code 530 - Wikipedia

    en.wikipedia.org/wiki/Area_code_530

    This map is clickable; click on any region shown to visit the page for those area codes.Area code 530 is shown in red. Area code 530 is a telephone area code in the North American Numbering Plan (NANP) in northeastern and Northern California. It was created in 1997 in an area code split of 916. The numbering plan area (NPA) includes the ...