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area code

Biggest city:





Mountain (GMT -7)

Nearby area codes: 

Zip codes



Major Cities:

Buckeye, Glendale, Peoria


Average Income:





Unemployment Rate:

The 623 area code, located in the state of Arizona, USA, encompasses several key aspects: Geographical Coverage: Area code 623 primarily serves the western region of Phoenix, Arizona. This includes not only Phoenix, the largest city in the area, but also other significant locations like Glendale, Peoria, and Surprise. These cities are vital parts of the region, contributing to its cultural and economic landscape​​​​. Establishment and Purpose: The 623 area code was officially assigned on January 11th, 1999, and became active on March 1st of the same year. This indicates that it was introduced to cater to the growing demand for telephone numbers in the region, a common reason for the creation of new area codes across the United States. The 623 area code is designated as a General Purpose Code, meaning it is used for regular telephone service rather than specialized purposes like customer service lines​​. Time Zone Information: The 623 area code follows the Mountain Standard Time (MST) zone. This is important for understanding the timing of communications and business operations within the area. Knowing the time zone is particularly crucial for businesses and individuals who deal with clients or partners in different parts of the country or world, as it helps in scheduling calls or meetings appropriately​​​​. In conclusion, the 623 area code is a significant telecommunications region in Arizona, encompassing key cities like Phoenix, Glendale, Peoria, and Surprise. Established in 1999 to meet the growing demand for phone numbers, it operates within the Mountain Standard Time zone, playing a crucial role in the communication infrastructure of the western Phoenix area. Understanding these facts about the 623 area code can be vital for residents, businesses, and anyone communicating with this region of Arizona.
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