Phone numbers in McIntosh, South Dakota
McIntosh has 3 phone prefixes in area code 605.
Biggest holders: CenturyLink / Lumen, Airus. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 67%
- Phone company 33%
Every prefix in McIntosh
Search the first six digits of a number in this list. If it's here, the number started in McIntosh with the carrier shown. If it isn't, check the South Dakota page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 605-273 | CenturyLink / Lumen | Local phone company | – |
| 605-524 | CenturyLink / Lumen | Local phone company | – |
| 605-640 | Airus | Phone company | 2019 |
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.