Phone numbers in Northfield, Vermont
Northfield has 3 phone prefixes in area code 802.
Biggest holders: Northfield Tel, Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Internet / business phone carrier 33%
- Phone company 67%
Every prefix in Northfield
Search the first six digits of a number in this list. If it's here, the number started in Northfield with the carrier shown. If it isn't, check the Vermont page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 802-200 | Northfield Tel | Phone company | 2016 |
| 802-312 | Onvoy | Internet / business phone carrier | 2021 |
| 802-485 | Northfield Tel | 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.