Area Code 623
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Area code 623: North American area code 623 is a state of Arizona telephone area code serving most of the western portion of the Phoenix metropolitan area. It was created in a split from area code 602 on April 1, 1999, when it was apparent that the Valley of the Sun was growing too fast to stay in one area code. Generally, the West Valley and the western half of the far northern portion of the metro became 623, while the eastern suburbs and the Phoenix neighborhood of Ahwatukee became area code 480.
- part of Arizona
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