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Area code 520 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Arizona. The numbering plan area comprises Tucson and most of the southeastern part of the state. Area code 520 was created in a split of area code 602 on March 19, 1995. Previously, 602 had been the sole area code for the entire state of ...
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]
2 Area codes by country, state, province, ... N11 code for local information for transportation and road conditions, ... split to create 520; 1999: ...
Permissive dialing of the new area codes started on April 1. [18] The three Valley area codes formed one of the largest local calling areas in the western United States. With the exception of the slivers of the Valley that are in the 520 and 928 area codes, no long-distance charges are applied from one portion of the Valley to another.
Current events; Random article; ... Pages in category "Area codes in Arizona" ... Area code 520; Area codes 602, 480, and 623; Area code 623;
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At the same time, local exchanges were allowed to use 1 or 0 as a middle digit. The first area codes without a 1 or 0 as the middle digit were area code 334 in Alabama and area code 360 in Washington, which both began service on January 15, 1995. This was followed quickly by area code 520 serving Arizona on March 19, 1995.
Other area codes that are expected to exhaust by the end of 2027 that do not have an approved relief plan: 352, 502, 520, 603, 714/657, 718/347/929, 765 and 949. [ 24 ] See also