The 520 area code is used by SOME cities and towns in these Counties:
Cochise County | Cities & Towns | ZIP Codes | Features |
Gila County | Cities & Towns | ZIP Codes | Features |
Maricopa County | Cities & Towns | ZIP Codes | Features |
Pima County | Cities & Towns | ZIP Codes | Features |
Pinal County | Cities & Towns | ZIP Codes | Features |
Santa Cruz County | Cities & Towns | ZIP Codes | Features |