Phone numbers in Brandon, South Dakota
Brandon has 3 phone prefixes in area code 605.
Biggest holders: Alliance Comm. Cooperative, Inc. (Split Rock), Midco Voice, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 33%
- Phone company 33%
Every prefix in Brandon
Search the first six digits of a number in this list. If it's here, the number started in Brandon with the carrier shown. If it isn't, check the South Dakota page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 605-582 | Alliance Comm. Cooperative, Inc. (Split Rock) | Local phone company | – |
| 605-604 | Midco Voice | Phone company | 2021 |
| 605-839 | AT&T Mobility | Mobile carrier | 2011 |
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.