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  2. List of California area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_California_area_codes

    Much of the City of Los Angeles and several inner suburbs: originally split off from 213 to form a ring around downtown Los Angeles and the city of Montebello on June 13, 1998; in August 2017, the boundary between 213 and 323 was erased to form an overlay. On November 1, 2024, it was overlaid by area code 738. 341: overlay with 510

  3. Area code 021 - Wikipedia

    en.wikipedia.org/wiki/Area_code_021

    in Ireland, the area code for the city of Cork and a surrounding part of County Cork. in Libya, the telephone area code for the capital city of Tripoli. in Nepal, the Nepal Telecom telephone area code for the district of Morang. in New Zealand, the "area code" for cellular phones on the Vodafone network. in Pakistan, the telephone area code for ...

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

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

    This feature group 'B' has been rendered obsolete by 1010xxx "dial-around" feature group 'D', but the exchange remains reserved in each individual area code. 951: California (western Riverside County, including Riverside, Corona, California, Lake Elsinore, Mira Loma, Moreno Valley, Sun City, Temecula, Winchester, Lakeview, etc.) July 17, 2004

  5. Telephone numbering plan - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbering_plan

    In California and New York, because of the existence of both overlay area codes (where an area code must be dialed for every call) and non-overlay area codes (where an area code is dialed only for calls outside the subscriber's home area code), "permissive home area code dialing" of 1 + the area code within the same area code, even if no area ...

  6. California City, California - Wikipedia

    en.wikipedia.org/wiki/California_City,_California

    Covering 203.63 square miles (527.4 km 2), California City has the third-largest land area of any city in the state of California (behind San Diego and Los Angeles), and is the largest city in California, by land area, that is not a county seat. It is the 43rd-largest city in the United States by land area.

  7. Original North American area codes - Wikipedia

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

    In 1950, southwest Missouri, with a new toll-center in Joplin, received area code 417, a change that provided more central offices in Kansas City. In 1951, the number of area codes grew to ninety: the State of New York gained area code 516 on Long Island, and Southern California received area code 714, to reduce the numbering plan area of Los ...

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

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

    In 1947, when 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: 213, 415, and 916, for the southern, central, and northern parts of the state, respectively. [1]

  9. Area codes 408 and 669 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_408_and_669

    The area code split became effictive on July 11, 1998, with a permissive dialing period ending on February 20, 1999. [3] Months later, by late 1998, continued growth in telecommunication services in Northern California required further area code relief for the 408 numbering plan area.