Phone numbers in Castleton, Vermont
Castleton has 3 phone prefixes in area code 802.
Biggest holders: Consolidated Communications Of Vermont, Level 3 (Lumen), Stratus Networks. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 33%
- Internet / business phone carrier 33%
- Phone company 33%
Every prefix in Castleton
Search the first six digits of a number in this list. If it's here, the number started in Castleton with the carrier shown. If it isn't, check the Vermont page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 802-468 | Consolidated Communications Of Vermont | Local phone company | – |
| 802-671 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 802-965 | Stratus Networks | Phone company | 2021 |
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.