Phone numbers in Vermillion, South Dakota
Vermillion has 10 phone prefixes in area code 605.
Biggest holders: CenturyLink / Lumen, Verizon Wireless, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 40%
- Local phone company 30%
- Internet / business phone carrier 10%
- Phone company 20%
Every prefix in Vermillion
Search the first six digits of a number in this list. If it's here, the number started in Vermillion with the carrier shown. If it isn't, check the South Dakota page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 605-202 | AT&T Mobility | Mobile carrier | 2002 |
| 605-624 | CenturyLink / Lumen | Local phone company | – |
| 605-638 | CenturyLink / Lumen | Local phone company | – |
| 605-658 | Midcontinent Communications | Phone company | 2007 |
| 605-659 | Verizon Wireless | Mobile carrier | – |
| 605-670 | Verizon Wireless | Mobile carrier | – |
| 605-672 | Bluepeak | Phone company | – |
| 605-675 | T-Mobile (including Sprint) | Mobile carrier | – |
| 605-677 | CenturyLink / Lumen | Local phone company | – |
| 605-741 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
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.