Area Code 602
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Area Code 602
Area code 775Area code 702Area code 435Area code 970Area code 505Area code 760Area code 623Area code 623Area code 623Area code 480Area code 623Area code 623Area code 623Area code 602Area code 602Area code 520Area code 480Area code 520Area code 928Area code 928
Clickable map of Arizona area codes in blue (and border states) with Area Code 602 shown in red

North American area code 602 is a state of Arizona telephone area code that covers most of the city of Phoenix. It was one of the original area codes established in October 1947 and originally covered the entire state of Arizona until 1995 when area code 520 was established as the state's second area code. While Arizona's explosive expansion during the second half of the 20th century would have made a split necessary in any event, it was hastened by the demand for telephone lines created by the proliferation of fax machines, cell phones and dial-up Internet connections. Many states introduced new area codes during this time frame for much the same reason. Generally, greater Phoenix retained 602, except for some outer portions of Maricopa County that transferred to 520.

The creation of 520 was intended as a long-term solution. Within only three years, however, 602 came close to exhaustion once again. It was eventually decided that the Phoenix metropolitan area required multiple area codes. Initially, plans called for an overlay of 602 with another area code. However, overlays were a new concept at the time, and met with some resistance due to the requirement for ten-digit dialing and the fact that overlays make the location of phone numbers ambiguous. As a result, a three-way geographic split was chosen instead. The split became effective on April 1, 1999. The East Valley, as the eastern portion of the metropolitan area is called by some, from the Town of Paradise Valley (which goes as far west as 32nd St) as well as the city north of Union Hills and east of the 2000 E Grid, and everything from about 56th Street eastward, became 480. Most of the West Valley area and the city west of 39th Ave north of Indian School to west of 63rd Ave from I-10 south, along with the city from north of Union Hills and west of the 2000 E Grid, became 623.

This split resulted in Phoenix becoming one of the few major cities in the nation to be split between multiple area codes. Only two cities ended with multiple area codes with this change. While this also made Phoenix one of the few major cities not to be overlaid, ten-digit dialing is still now necessary in certain areas of the metro area.

Most areas of Phoenix remained in 602, but a few areas (such as the Ahwatukee neighborhood and parts of Maryvale) transferred to 480 or 623. The area code divider between 602 and 623 was drawn in such a manner that in some neighborhoods, homes only a few hundred feet away from each other may have different area codes. Glendale's northern half has the area code divider running diagonally through its middle. A small portion of Tempe (west and south of the I-10 Broadway Curve) also remained in 602.

See also

Arizona area codes: 480, 520, 602, 623, 928
North: 480
West: 623 area code 602 East: 480
South: 480, 520

Coordinates: 33°30?N 112°06?W / 33.5°N 112.1°W / 33.5; -112.1


  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.


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