Phone numbers in Neenah, Wisconsin
Neenah has 21 phone prefixes in area codes 274, 920.
Biggest holders: AT&T (local phone), Onvoy, Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 10%
- Local phone company 43%
- Internet / business phone carrier 38%
- Phone company 10%
Every prefix in Neenah
Search the first six digits of a number in this list. If it's here, the number started in Neenah with the carrier shown. If it isn't, check the Wisconsin page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 274-227 | AT&T Mobility | Mobile carrier | 2025 |
| 920-215 | AT&T (local phone) | Local phone company | – |
| 920-383 | Net Lec | Phone company | 2004 |
| 920-414 | Onvoy | Internet / business phone carrier | 2021 |
| 920-486 | Level 3 (Lumen) | Internet / business phone carrier | 2003 |
| 920-502 | Charter / Spectrum | Internet / business phone carrier | 2018 |
| 920-521 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 920-558 | Charter / Spectrum | Internet / business phone carrier | 2004 |
| 920-637 | UScellular | Mobile carrier | – |
| 920-720 | AT&T (local phone) | Local phone company | – |
| 920-721 | AT&T (local phone) | Local phone company | – |
| 920-722 | AT&T (local phone) | Local phone company | – |
| 920-725 | AT&T (local phone) | Local phone company | – |
| 920-727 | AT&T (local phone) | Local phone company | – |
| 920-729 | AT&T (local phone) | Local phone company | – |
| 920-751 | AT&T (local phone) | Local phone company | – |
| 920-780 | Nuso | Internet / business phone carrier | 2023 |
| 920-886 | TDS Metrocom | Phone company | – |
| 920-956 | Onvoy | Internet / business phone carrier | 2023 |
| 920-967 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 920-969 | AT&T (local phone) | 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.