Phone numbers in Marshfield, Wisconsin
Marshfield has 16 phone prefixes in area codes 534, 715.
Biggest holders: Frontier, AT&T Mobility, TON80 Communications. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 38%
- Local phone company 38%
- Internet / business phone carrier 19%
- Phone company 6%
Every prefix in Marshfield
Search the first six digits of a number in this list. If it's here, the number started in Marshfield with the carrier shown. If it isn't, check the Wisconsin page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 534-253 | TON80 Communications | Internet / business phone carrier | 2021 |
| 715-207 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 715-221 | Frontier | Local phone company | – |
| 715-305 | UScellular | Mobile carrier | – |
| 715-383 | Frontier | Local phone company | – |
| 715-384 | Frontier | Local phone company | – |
| 715-387 | Frontier | Local phone company | – |
| 715-389 | Frontier | Local phone company | – |
| 715-486 | Frontier | Local phone company | – |
| 715-502 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 715-650 | Metro Southwest Pcs, Llp | Mobile carrier | 2005 |
| 715-660 | Verizon Wireless | Mobile carrier | 2014 |
| 715-810 | Commio | Internet / business phone carrier | 2022 |
| 715-897 | AT&T Mobility | Mobile carrier | – |
| 715-898 | AT&T Mobility | Mobile carrier | – |
| 715-996 | Central Wisconsin Communications | Phone company | 2007 |
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.