Phone numbers in Mobridge, South Dakota
Mobridge has 5 phone prefixes in area code 605.
Biggest holders: AT&T Mobility, West River Telecommunications Coop, West River Telecommunications Coop (mobridge). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 60%
- Phone company 40%
Every prefix in Mobridge
Search the first six digits of a number in this list. If it's here, the number started in Mobridge with the carrier shown. If it isn't, check the South Dakota page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 605-230 | AT&T Mobility | Mobile carrier | 2003 |
| 605-581 | AT&T Mobility | Mobile carrier | 2022 |
| 605-823 | West River Telecommunications Coop | Phone company | – |
| 605-845 | West River Telecommunications Coop (mobridge) | Phone company | – |
| 605-926 | AT&T Mobility | Mobile carrier | 2010 |
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.