Phone numbers in Mitchell, South Dakota
Mitchell has 13 phone prefixes in area code 605.
Biggest holders: CenturyLink / Lumen, Verizon Wireless, Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 38%
- Local phone company 23%
- Internet / business phone carrier 23%
- Phone company 15%
Every prefix in Mitchell
Search the first six digits of a number in this list. If it's here, the number started in Mitchell with the carrier shown. If it isn't, check the South Dakota page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 605-292 | Midcontinent Communications | Phone company | 2004 |
| 605-299 | Level 3 (Lumen) | Internet / business phone carrier | 2003 |
| 605-317 | Onvoy | Internet / business phone carrier | 2025 |
| 605-550 | Level 3 (Lumen) | Internet / business phone carrier | 2005 |
| 605-597 | CenturyLink / Lumen | Local phone company | 2010 |
| 605-630 | Verizon Wireless | Mobile carrier | – |
| 605-656 | Verizon Wireless | Mobile carrier | – |
| 605-770 | AT&T Mobility | Mobile carrier | – |
| 605-933 | AT&T Mobility | Mobile carrier | 2002 |
| 605-990 | Atv Holdings | Phone company | 2004 |
| 605-995 | CenturyLink / Lumen | Local phone company | – |
| 605-996 | CenturyLink / Lumen | Local phone company | – |
| 605-999 | Verizon Wireless | Mobile carrier | – |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.