Phone numbers in Boulder Junction, Wisconsin
Boulder Junction has 3 phone prefixes in area code 715.
Biggest holders: Brightspeed Of Northern Wisconsin, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 67%
Every prefix in Boulder Junction
Search the first six digits of a number in this list. If it's here, the number started in Boulder Junction with the carrier shown. If it isn't, check the Wisconsin page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 715-385 | Brightspeed Of Northern Wisconsin | Local phone company | – |
| 715-605 | AT&T Mobility | Mobile carrier | – |
| 715-918 | Brightspeed Of Northern Wisconsin | Local phone company | 2021 |
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.