Phone numbers in Newaygo, Michigan
Newaygo has 9 phone prefixes in area code 231.
Biggest holders: AT&T Mobility, Teleport Communications America, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 44%
- Local phone company 11%
- Internet / business phone carrier 33%
- Paging service 11%
Every prefix in Newaygo
Search the first six digits of a number in this list. If it's here, the number started in Newaygo with the carrier shown. If it isn't, check the Michigan page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 231-245 | AT&T Mobility | Mobile carrier | 2009 |
| 231-303 | Teleport Communications America | Internet / business phone carrier | 2011 |
| 231-380 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 231-414 | AT&T Mobility | Mobile carrier | – |
| 231-452 | Comcast | Internet / business phone carrier | – |
| 231-519 | Verizon Wireless | Mobile carrier | 2002 |
| 231-605 | Spok | Paging service | – |
| 231-652 | AT&T (local phone) | Local phone company | – |
| 231-707 | Onvoy | Internet / business phone carrier | 2016 |
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.