| 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 |
|---|---|---|---|
| 520-351 | Tucson | Pima | Landline |
| 520-427 | Tucson | Pima | Wireless |
| 520-746 | Tucson | Pima | Landline |
| 520-428 | Tucson | Pima | Wireless |
| 520-254 | Willcox | Cochise | Landline |
| 520-820 | Tucson | Pima | Wireless |
| 520-262 | Tucson | Pima | Wireless |
| 520-305 | Tucson | Pima | Wireless |
| 520-595 | Tucson | Pima | Landline |
| 520-584 | Tucson | Pima | Landline |
| 520-294 | Tucson | Pima | Landline |
| 520-577 | Tucson | Pima | Landline |
| 520-408 | Tucson | Pima | Landline |
| 520-292 | Tucson | Pima | Landline |
| 520-279 | Tucson | Pima | Wireless |
| 520-662 | Tucson | Pima | Landline |
| 520-518 | Casa Grande | Pinal | Wireless |
| 520-866 | Florence | Pinal | Landline |
| 520-300 | Tucson | Pima | Wireless |
| 520-477 | Tucson | Pima | Landline |