Phone numbers in Grafton, North Dakota
Grafton has 5 phone prefixes in area code 701.
Biggest holders: CenturyLink / Lumen, AT&T Mobility, Midcontinent Communications. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 20%
- Local phone company 20%
- Internet / business phone carrier 20%
- Phone company 40%
Every prefix in Grafton
Search the first six digits of a number in this list. If it's here, the number started in Grafton with the carrier shown. If it isn't, check the North Dakota page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 701-352 | CenturyLink / Lumen | Local phone company | – |
| 701-360 | AT&T Mobility | Mobile carrier | – |
| 701-379 | Midcontinent Communications | Phone company | 2007 |
| 701-510 | Stratus Networks | Phone company | 2021 |
| 701-922 | Bandwidth | Internet / business phone 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.