Phoenix, Arizona
Area code 623
Where Is Area Code 623?
Area code 623 is in Arizona. It serves the western part of the Phoenix metropolitan area in Maricopa County, including many suburbs and communities west and northwest of central Phoenix.
Major cities and communities in area code 623 include Glendale, Peoria, Surprise, Avondale, Goodyear, Tolleson, El Mirage, Sun City, Sun City West, Wickenburg, and Buckeye. The area also covers parts of western Phoenix and nearby communities in the West Valley.
This area includes well-known West Valley landmarks and destinations. State Farm Stadium in Glendale, home of the Arizona Cardinals, and Desert Diamond Arena in Glendale are both in the 623 area. The region lies in the Sonoran Desert and stretches from dense suburbs to more open desert areas near the edge of the metro area.
History of Area Code 623
Area code 623 was created on June 23, 1999. It was split from area code 602 as the Phoenix area added more residents, businesses, and phone lines.
The split gave 602 to much of central Phoenix, while 623 took the outer western and northwestern parts of the metro area. Area code 480 had already been created in 1999 for the eastern part of the Phoenix area, which shows how fast telephone demand was growing across Greater Phoenix in the late 1990s.
Key Facts About Area Code 623
- Area code 623 is in Arizona and primarily serves the West Valley portion of the Phoenix metropolitan area.
- Area code 623 was created in a split from area code 602 on June 23, 1999.
- Area code 623 is a geographic area code, not a toll-free code.
- Area code 623 is in the Mountain Time Zone, and most of Arizona does not observe daylight saving time.
- Area code 623 serves communities in Maricopa County, including Glendale, Peoria, Surprise, Avondale, Goodyear, Buckeye, and Tolleson.
- State Farm Stadium in Glendale is within the 623 area code service area.
- Luke Air Force Base, west of Glendale near Litchfield Park, is in the broader area served by area code 623.
- Area code 623 covers part of the fast-growing suburban and desert communities west of Phoenix.
Frequently Asked Questions
What state is area code 623 in?
Area code 623 is in Arizona.
What major cities use area code 623?
Major cities and communities in area code 623 include Glendale, Peoria, Surprise, Avondale, Goodyear, Buckeye, Tolleson, El Mirage, Sun City, Sun City West, and Wickenburg.
Is area code 623 a toll-free number?
No. Area code 623 is a geographic area code for western parts of the Phoenix, Arizona metropolitan area.
Last updated: April 2026