Where Is Area Code 623?
Area code 623 serves the western and northwestern parts of the Phoenix metropolitan area in Maricopa County, Arizona. Phoenix is the primary city, and the area belongs to the Mountain West region of the United States.
Coverage is concentrated in the West Valley, including communities west of central Phoenix. It also includes parts of Phoenix itself, although telephone area-code boundaries do not always match city limits.
Notable places in the region include State Farm Stadium and Luke Air Force Base in Glendale. The White Tank Mountains lie west of the Valley, and Lake Pleasant lies northwest of Phoenix.
Cities and Communities in the 623 Area Code
- Anthem, Maricopa County
- Avondale, Maricopa County
- Buckeye, Maricopa County
- El Mirage, Maricopa County
- Glendale, Maricopa County
- Goodyear, Maricopa County
- Litchfield Park, Maricopa County
- New River, Maricopa County
- Peoria, Maricopa County
- Phoenix, Maricopa County
- Sun City, Maricopa County
- Sun City West, Maricopa County
- Surprise, Maricopa County
- Tolleson, Maricopa County
- Waddell, Maricopa County
- Youngtown, Maricopa County
History of Area Code 623
Area code 623 began service on March 1, 1999, when Arizona split the former 602 numbering area into three area codes: 602, 480, and 623. Area code 623 covered the western and northwestern parts of the Phoenix metropolitan area, while 602 remained primarily in central Phoenix and 480 covered much of the East Valley.
The split responded to growing demand for telephone numbers as Phoenix and its suburbs expanded. The 1999 change was a geographic split, not an overlay, and area code 623 remains associated with the West Valley and northwest Valley.
Key Facts About Area Code 623
- State and primary city: Area code 623 is a geographic area code in Arizona, with Phoenix as its primary city.
- Region: Area code 623 is located in the Mountain West region of the United States.
- Established: Area code 623 entered service on March 1, 1999.
- Origin: Area code 623 was created through a split of area code 602.
- Main county: The communities most closely associated with area code 623 are in Maricopa County.
- Type: Area code 623 is geographic, not toll-free.
- Institution: Midwestern University operates its Glendale campus in the area associated with area code 623.
- Landmarks: State Farm Stadium and Luke Air Force Base are located in Glendale, a major city associated with area code 623.
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 associated with area code 623 include Phoenix, Glendale, Peoria, Avondale, Goodyear, Buckeye, Surprise, El Mirage, Litchfield Park, Tolleson, and Youngtown.
What time zone is area code 623 in?
Area code 623 is in Mountain Time, and Arizona does not observe daylight saving time.
Is area code 623 a toll-free number?
No. Area code 623 is a geographic area code, not a toll-free code.