Phone numbers in Kilmarnock, Virginia
Kilmarnock has 8 phone prefixes in area codes 686, 804.
Biggest holders: Verizon Wireless, Verizon (local phone), Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 50%
- Local phone company 25%
- Internet / business phone carrier 12%
- Phone company 12%
Every prefix in Kilmarnock
Search the first six digits of a number in this list. If it's here, the number started in Kilmarnock with the carrier shown. If it isn't, check the Virginia page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 686-777 | Onvoy | Internet / business phone carrier | 2025 |
| 804-435 | Verizon (local phone) | Local phone company | – |
| 804-436 | Verizon (local phone) | Local phone company | – |
| 804-480 | Verizon Wireless | Mobile carrier | 2010 |
| 804-567 | Verizon Wireless | Mobile carrier | 2020 |
| 804-577 | Verizon Wireless | Mobile carrier | 2006 |
| 804-875 | Verizon Wireless | Mobile carrier | 2022 |
| 804-945 | Coretel Virginia | 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.