| 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 |
|---|---|---|---|
| 520-205 | Tucson | Pima | Landline |
| 520-887 | Tucson | Pima | Landline |
| 520-742 | Tucson | Pima | Landline |
| 520-426 | Casa Grande | Pinal | Landline |
| 520-434 | Tucson | Pima | Landline |
| 520-237 | Tucson | Pima | Wireless |
| 520-625 | Green Valley | Pima | Landline |
| 520-513 | Tucson | Pima | Landline |
| 520-748 | Tucson | Pima | Landline |
| 520-831 | Prescott | Yavapai | Wireless |
| 520-917 | Tucson | Pima | Landline |
| 520-750 | Tucson | Pima | Landline |
| 520-528 | Tucson | Pima | Wireless |
| 520-879 | Tucson | Pima | Landline |
| 520-630 | Rio Rico | Santa Cruz | Wireless |
| 520-572 | Tucson | Pima | Landline |
| 520-399 | Green Valley | Pima | Landline |
| 520-991 | Phoenix | Maricopa | Wireless |
| 520-356 | Hayden | Gila | Landline |
| 520-868 | Florence | Pinal | Landline |