Area code 480
North American area code 480 is a telephone area code in Arizona serving the eastern and northern portions of the Phoenix metropolitan area. It was created on April 1, 1999, in a three-way split of area code 602, when it was apparent that the Valley of the Sun was growing too fast for it to remain entirely in one area code. Generally, 480 is coextensive with the East Valley, while most of the West Valley is area code 623 and most of Phoenix itself remained in 602.
By the turn of the millennium, 602 was running out of numbers just four years after all of the state outside of the Valley of the Sun was split off as area code 520. Original plans called for 480 to be an overlay code for the entire Phoenix metro area. However, overlays were a new concept at the time, and met with considerable resistance due to potential geographic ambiguity, as well as the requirement for ten-digit dialing. A three-way geographic split was chosen instead, with 480 assigned to the East Valley.
The 480 area code encompasses Scottsdale, Paradise Valley, Fountain Hills, Tempe (except for a small portion west and south of the I-10 Broadway Curve, which stayed in 602), Chandler, Gilbert, Mesa, Queen Creek, Apache Junction, as well as far northeast Phoenix and the Phoenix neighborhood of Ahwatukee, and newer unincorporated communities in far northwest Pinal County that are becoming part of the Greater Phoenix metropolitan area due to heavy development. Also in area code 480 are pagers for the Iridium satellite telephone service.
As of October 2020, area code 480 is expected to reach exhaustion by the first quarter of 2024.
The three Valley area codes form one of the largest local calling areas in the western United States. With few exceptions, no long distance charges are applied from one portion of the Valley to another. Even after the split into three area codes, most of the Valley is still part of the Phoenix exchange, making Phoenix one of the largest rate centers in the United States.
Area code 480 has telephone numbers assigned for the central office code 988. 988 has been designated nationwide as a dialing code for the National Suicide Prevention Lifeline, which creates a conflict for exchanges that permit seven-digit dialing. This area code is therefore scheduled to transition to ten-digit dialing, mandatory after October 24, 2021.
|North: 623, 928|
|West: 602, 928||area code 480||East: 520, 928|
- "2020-2 NRUF and NPA Exhaust Analysis" (PDF).
- Local calling guide: Phoenix, AZ
- "Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline)" (PDF). North American Numbering Plan Administrator. January 8, 2021. Retrieved March 9, 2021.