520 Area Code: Cities, Time Zone and Zip Codes
What area code is 520? The area code 520 is located in Arizona and it serves Tucson, Casa Adobes, Catalina Foothills, Casa Grande, Sierra Vista, Maricopa, Oro Valley, Marana, Drexel Heights, and some other surrounding cities. The area code 520 was created from area code 602 on January 21, 1994, and was first put to