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  2. Area codes 602, 480, and 623 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_602,_480,_and_623

    Area codes 602, 480, and 623 are telephone area codes in the North American Numbering Plan (NANP) for most of the Phoenix metropolitan area in the U.S. state of Arizona. Area code 602 is the oldest area code in Arizona and was assigned in 1947 for the entire state. Under pressure from population growth and new telecommunications services, the ...

  3. List of Arizona area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Arizona_area_codes

    602 was the original area code for Arizona, and was split in 1995 into 602, serving metropolitan Phoenix, and 520, serving the remainder of the state. [1] In 1999, 602 was split into 480, 602, and 623, [2] which were recombined in 2023. [3] 520 was split in 2001 to form area code 928. [4]

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

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

    1993: split to create 905. 2001: overlaid by 647. 2013: overlaid by 437. 2025: overlaid by 942. area code 387 is reserved as a fifth code for the region. 417. Missouri (Springfield, Joplin, Branson, Lamar, Lebanon, and most of southwestern Missouri) 1950. created from parts of the area codes 314 and 816.

  5. 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 ...

  6. List of Illinois area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Illinois_area_codes

    Area code 847 exhausted its numbers quickly, so that an overlay area code, 224, was implemented in 1996 for relief. However, mandatory ten-digit dialing was not in effect until 2002. In March 2007, an overlay plan was created for NPA 630 adding area code 331, and 779 was added to 815. With the depletion of new numbers in area codes 312 and 773 ...

  7. Area codes 619 and 858 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_619_and_858

    Area codes 619 and 858 are telephone area codes in the North American Numbering Plan (NANP) for most of San Diego County in the U.S. state of California. Area code 619 was created by a split of area code 714 in 1982. In 1999, a part of the 619 numbering plan area was assigned area code 858 in northwest San Diego County.

  8. List of Wisconsin area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Wisconsin_area_codes

    List of Wisconsin area codes. The U.S. state of Wisconsin is serviced in five distinct numbering plan areas (NPAs) with the following area codes of the North American Numbering Plan (NANP). Area codes 414 and 715 were among the original North American area codes assigned in 1947. Milwaukee County and several outlying areas served by Milwaukee ...

  9. Area code 480 - Wikipedia

    en.wikipedia.org/?title=Area_code_480&redirect=no

    Area code 480. 2 languages. Français; ... Area codes 602, 480, and 623; From a merge: This is a redirect from a page that was merged into another page.