| 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 |
|---|---|---|---|
| 520-390 | Phoenix | Maricopa | Wireless |
| 520-874 | Tucson | Pima | Landline |
| 520-838 | Tucson | Pima | Landline |
| 520-430 | Tolleson | Maricopa | Landline |
| 520-807 | Tucson | Pima | Landline |
| 520-999 | Tucson | Pima | Landline |
| 520-989 | Scottsdale | Maricopa | Landline |
| 520-661 | Phoenix | Maricopa | Wireless |
| 520-366 | Sierra Vista | Cochise | Landline |
| 520-515 | Sierra Vista | Cochise | Landline |
| 520-437 | Tucson | Pima | Landline |
| 520-895 | Tucson | Pima | Landline |
| 520-722 | Tucson | Pima | Landline |
| 520-604 | Rio Rico | Santa Cruz | Wireless |
| 520-419 | Tucson | Pima | Wireless |
| 520-844 | Tucson | Pima | Landline |
| 520-299 | Tucson | Pima | Landline |
| 520-546 | Tucson | Pima | Landline |
| 520-617 | Tucson | Pima | Landline |
| 520-561 | Tucson | Pima | Wireless |