| 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 |
|---|---|---|---|
| 520-560 | Casa Grande | Pinal | Wireless |
| 520-636 | Pinal | Pinal | - |
| 520-861 | Tucson | Pima | Wireless |
| 520-791 | Tucson | Pima | Landline |
| 520-647 | Tucson | Pima | Landline |
| 520-248 | Tucson | Pima | Wireless |
| 520-309 | Tucson | Pima | Landline |
| 520-786 | Tucson | Pima | Wireless |
| 520-323 | Tucson | Pima | Landline |
| 520-293 | Tucson | Pima | Landline |
| 520-446 | Tucson | Pima | Wireless |
| 520-349 | Tucson | Pima | Wireless |
| 520-599 | Tucson | Pima | Wireless |
| 520-457 | Tombstone | Cochise | Landline |
| 520-833 | Tucson | Pima | Landline |
| 520-575 | Tucson | Pima | Landline |
| 520-275 | Tucson | Pima | Wireless |
| 520-422 | Tucson | Pima | Landline |
| 520-249 | Sierra Vista | Cochise | Wireless |
| 520-594 | Tucson | Pima | Landline |