623 Area Code: Cities, Time Zone and Zip Codes
What area code is 623? The area code 623 is located in Arizona and it serves Phoenix, Glendale, Peoria, Surprise, Avondale, Goodyear, Buckeye, Sun City, El Mirage, Sun City West, and some other surrounding cities. Area code 623 was created from area code 602 on January 11, 1999, and was first put to use on