| General Information about Area Code 605 | |
|---|---|
| Country | United States |
| State / Province / Territory | South Dakota |
| Major City | Sioux Falls |
| Time Zone | Central (UTC-06:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 605-754 | New Underwood | Pennington | Landline |
| 605-238 | Viborg | Turner | Landline |
| 605-862 | Milbank | Grant | Landline |
| 605-784 | Bradley | Clark | Landline |
| 605-223 | Pierre | Hughes | Landline |
| 605-279 | Wall | Pennington | Landline |
| 605-935 | Tripp | Hutchinson | Landline |
| 605-625 | Willow Lake | Clark | Landline |
| 605-548 | Baltic | Minnehaha | Landline |
| 605-635 | Doland | Spink | Landline |
| 605-447 | Onaka | Faulk | Landline |
| 605-239 | Alexandria | Hanson | Landline |
| 605-776 | Pierre | Hughes | Landline |
| 605-295 | Pierre | Hughes | Wireless |
| 605-732 | Plankinton | Aurora | Landline |
| 605-891 | Hot Springs | Fall River | Wireless |
| 605-599 | Cavour | Beadle | Landline |
| 605-834 | Herrick | Gregory | Landline |
| 605-929 | Sioux Falls | Minnehaha | Wireless |
| 605-742 | Sisseton | Roberts | Landline |