Phone numbers in Hillsboro, North Dakota
Hillsboro has 5 phone prefixes in area code 701.
Biggest holders: AT&T Mobility, Midcontinent Communications, Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 40%
- Local phone company 40%
- Phone company 20%
Every prefix in Hillsboro
Search the first six digits of a number in this list. If it's here, the number started in Hillsboro with the carrier shown. If it isn't, check the North Dakota page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 701-289 | AT&T Mobility | Mobile carrier | 2003 |
| 701-383 | Midcontinent Communications | Phone company | 2007 |
| 701-430 | Verizon Wireless | Mobile carrier | – |
| 701-436 | CenturyLink / Lumen | Local phone company | – |
| 701-636 | Halstad Telephone | Local phone company | – |
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.