Phone numbers in Williston, North Dakota
Williston has 12 phone prefixes in area code 701.
Biggest holders: Verizon Wireless, Ncc Enterprises, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 58%
- Internet / business phone carrier 8%
- Phone company 33%
Every prefix in Williston
Search the first six digits of a number in this list. If it's here, the number started in Williston with the carrier shown. If it isn't, check the North Dakota page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 701-570 | Verizon Wireless | Mobile carrier | – |
| 701-571 | Sagebrush Cellular | Mobile carrier | 2004 |
| 701-572 | Ncc Enterprises | Phone company | – |
| 701-577 | Ncc Enterprises | Phone company | – |
| 701-580 | Verizon Wireless | Mobile carrier | – |
| 701-609 | Verizon Wireless | Mobile carrier | 2011 |
| 701-651 | AT&T Mobility | Mobile carrier | 2006 |
| 701-713 | Verizon Wireless | Mobile carrier | 2012 |
| 701-770 | AT&T Mobility | Mobile carrier | – |
| 701-774 | Ncc Enterprises | Phone company | – |
| 701-901 | Wide Voice | Phone company | 2015 |
| 701-978 | Onvoy | Internet / business phone carrier | – |
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.