| General Information about Area Code 520 | |
|---|---|
| Country | United States |
| State / Province / Territory | Arizona |
| Major City | Tucson |
| Time Zone | Mountain (UTC-07:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 520-494 | Casa Grande | Pinal | Landline |
| 520-257 | Tucson | Pima | Wireless |
| 520-841 | Rio Rico | Santa Cruz | Wireless |
| 520-331 | Tucson | Pima | Wireless |
| 520-721 | Tucson | Pima | Landline |
| 520-432 | Bisbee | Cochise | Landline |
| 520-872 | Tucson | Pima | Landline |
| 520-461 | Phoenix | Maricopa | Landline |
| 520-202 | Tucson | Pima | Landline |
| 520-789 | Tucson | Pima | Wireless |
| 520-745 | Tucson | Pima | Landline |
| 520-896 | San Manuel | Pinal | Landline |
| 520-918 | Tucson | Pima | Landline |
| 520-689 | Superior | Pinal | Landline |
| 520-901 | Tucson | Pima | Landline |
| 520-850 | Tucson | Pima | Wireless |
| 520-798 | Tucson | Pima | Landline |
| 520-606 | Tucson | Pima | Wireless |
| 520-409 | Tucson | Pima | Wireless |
| 520-993 | Sells | Pima | Wireless |