Phone numbers in Chippewa Falls, Wisconsin
Chippewa Falls has 9 phone prefixes in area codes 534, 715.
Biggest holders: AT&T (local phone), AT&T Enterprises, Teleport Communications America, LLC Wi. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 11%
- Local phone company 44%
- Internet / business phone carrier 33%
- Phone company 11%
Every prefix in Chippewa Falls
Search the first six digits of a number in this list. If it's here, the number started in Chippewa Falls with the carrier shown. If it isn't, check the Wisconsin page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 534-220 | AT&T Enterprises | Phone company | 2011 |
| 715-438 | Teleport Communications America, LLC Wi | Internet / business phone carrier | 2010 |
| 715-705 | Onvoy | Internet / business phone carrier | – |
| 715-720 | AT&T (local phone) | Local phone company | – |
| 715-723 | AT&T (local phone) | Local phone company | – |
| 715-726 | AT&T (local phone) | Local phone company | – |
| 715-738 | AT&T (local phone) | Local phone company | – |
| 715-861 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 715-944 | AT&T Mobility | Mobile carrier | 2008 |
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.