623 Area Code
Western Phoenix suburbs, Arizona
Area code 623 is located in Western Phoenix suburbs, Arizona. It covers Glendale, Peoria, and surrounding areas in the Mountain time zone (UTC-7). Administered by NANPA.
Where is area code 623?
Area code 623 is located in Western Phoenix suburbs, Arizona. It covers Glendale, Peoria, and surrounding areas in the Mountain time zone (UTC-7).
Cities Covered by Area Code 623
Area code 623 primarily serves the Western Phoenix suburbs area of Arizona. The exact coverage includes Glendale, Peoria, and Sun City, along with surrounding communities and suburbs.
Time Zone
Mountain Time — UTC-7
Area code 623 operates in the Mountain Time Zone. When calling 623 numbers from a different time zone, be sure to account for the time difference to reach people during business hours.
About Area Code 623
Area code 623 was introduced in 1999 as a geographic area code serving Western Phoenix suburbs, Arizona. It remains the primary area code for this region. Area codes are administered by NANPA (North American Numbering Plan Administration), the organization responsible for managing phone number resources in the US and Canada.