| 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 |
|---|---|---|---|
| 520-548 | Phoenix | Maricopa | Wireless |
| 520-204 | Tucson | Pima | Landline |
| 520-210 | Tucson | Pima | Landline |
| 520-316 | Casa Grande | Pinal | Landline |
| 520-794 | Tucson | Pima | Landline |
| 520-550 | Laveen | Maricopa | Landline |
| 520-589 | Pima | Pima | - |
| 520-278 | Tucson | Pima | Wireless |
| 520-263 | Tucson | Pima | Landline |
| 520-454 | Fort Huachuca | Cochise | Landline |
| 520-219 | Tucson | Pima | Landline |
| 520-678 | Cochise | Cochise | Wireless |
| 520-319 | Tucson | Pima | Landline |
| 520-251 | Casa Grande | Pinal | Wireless |
| 520-877 | Tucson | Pima | Landline |
| 520-884 | Tucson | Pima | Landline |
| 520-749 | Tucson | Pima | Landline |
| 520-385 | San Manuel | Pinal | Landline |
| 520-280 | Phoenix | Maricopa | Wireless |
| 520-867 | Tucson | Pima | Wireless |