Phone numbers in Manitowoc, Wisconsin
Manitowoc has 26 phone prefixes in area codes 274, 920.
Biggest holders: AT&T (local phone), Cellcom, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 31%
- Local phone company 23%
- Internet / business phone carrier 23%
- Paging service 8%
- Phone company 15%
Every prefix in Manitowoc
Search the first six digits of a number in this list. If it's here, the number started in Manitowoc with the carrier shown. If it isn't, check the Wisconsin page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 274-204 | Cellcom | Phone company | 2025 |
| 274-274 | Onvoy | Internet / business phone carrier | 2024 |
| 920-218 | American Messaging Services | Paging service | – |
| 920-242 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 920-320 | AT&T (local phone) | Local phone company | – |
| 920-323 | Cellcom | Phone company | – |
| 920-374 | T-Mobile (including Sprint) | Mobile carrier | – |
| 920-482 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 920-529 | American Messaging Services | Paging service | 2003 |
| 920-571 | T-Mobile (including Sprint) | Mobile carrier | – |
| 920-629 | Verizon Wireless | Mobile carrier | – |
| 920-645 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 920-652 | AT&T (local phone) | Local phone company | – |
| 920-663 | Teleport Communications America, LLC Wi | Internet / business phone carrier | – |
| 920-681 | T-Mobile (including Sprint) | Mobile carrier | – |
| 920-682 | AT&T (local phone) | Local phone company | – |
| 920-683 | AT&T (local phone) | Local phone company | – |
| 920-684 | AT&T (local phone) | Local phone company | – |
| 920-686 | AT&T (local phone) | Local phone company | – |
| 920-717 | Comcast | Internet / business phone carrier | 2014 |
| 920-769 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 920-816 | TDS Metrocom | Phone company | 2023 |
| 920-860 | AT&T Mobility | Mobile carrier | 2001 |
| 920-901 | UScellular | Mobile carrier | – |
| 920-905 | UScellular | Mobile carrier | – |
| 920-973 | Cellcom | 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.