| 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 |
|---|---|---|---|
| 520-719 | Pima | Pima | - |
| 520-909 | Tucson | Pima | Wireless |
| 520-954 | Tucson | Pima | Wireless |
| 520-308 | Tucson | Pima | Wireless |
| 520-216 | Rio Rico | Santa Cruz | Wireless |
| 520-795 | Tucson | Pima | Landline |
| 520-448 | Tucson | Pima | Landline |
| 520-225 | Tucson | Pima | Landline |
| 520-456 | Fort Huachuca | Cochise | Landline |
| 520-740 | Tucson | Pima | Landline |
| 520-860 | Rio Rico | Santa Cruz | Wireless |
| 520-797 | Tucson | Pima | Landline |
| 520-218 | Tucson | Pima | Landline |
| 520-421 | Casa Grande | Pinal | Landline |
| 520-931 | Tucson | Pima | Wireless |
| 520-579 | Tucson | Pima | Landline |
| 520-965 | Tucson | Pima | Wireless |
| 520-374 | Casa Grande | Pinal | Landline |
| 520-975 | Tucson | Pima | Wireless |
| 520-463 | Superior | Pinal | Landline |