| 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 |
|---|---|---|---|
| 520-570 | Tucson | Pima | Landline |
| 520-285 | Rio Rico | Santa Cruz | Landline |
| 520-375 | Rio Rico | Santa Cruz | Landline |
| 520-271 | Phoenix | Maricopa | Wireless |
| 520-203 | Tucson | Pima | Landline |
| 520-383 | Sells | Pima | Landline |
| 520-405 | Tucson | Pima | Wireless |
| 520-744 | Tucson | Pima | Landline |
| 520-276 | Tucson | Pima | Landline |
| 520-796 | Phoenix | Maricopa | Landline |
| 520-282 | Tucson | Pima | Wireless |
| 520-544 | Tucson | Pima | Landline |
| 520-452 | Sierra Vista | Cochise | Landline |
| 520-977 | Phoenix | Maricopa | Wireless |
| 520-403 | Tucson | Pima | Wireless |
| 520-545 | Tucson | Pima | Landline |
| 520-551 | Tucson | Pima | Wireless |
| 520-705 | Casa Grande | Pinal | Wireless |
| 520-826 | Pearce | Cochise | Landline |
| 520-519 | Tucson | Pima | Landline |