Phone numbers in Sisseton, South Dakota
Sisseton has 5 phone prefixes in area code 605.
Biggest holders: AT&T Mobility, Venture Communications Cooperative, Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 60%
- Local phone company 40%
Every prefix in Sisseton
Search the first six digits of a number in this list. If it's here, the number started in Sisseton with the carrier shown. If it isn't, check the South Dakota page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 605-268 | AT&T Mobility | Mobile carrier | 2003 |
| 605-419 | Verizon Wireless | Mobile carrier | 2014 |
| 605-698 | Venture Communications Cooperative | Local phone company | – |
| 605-742 | Venture Communications Cooperative | Local phone company | – |
| 605-927 | 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.