Phone numbers in Lompoc, California
Lompoc has 27 phone prefixes in area codes 805, 820.
Biggest holders: Frontier, AT&T Mobility, Teleport Communications America. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 30%
- Local phone company 33%
- Internet / business phone carrier 37%
Every prefix in Lompoc
Search the first six digits of a number in this list. If it's here, the number started in Lompoc with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 805-291 | AT&T Mobility | Mobile carrier | – |
| 805-294 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 805-315 | MetroPCS (T-Mobile) | Mobile carrier | 2002 |
| 805-430 | Peerless Network Of California | Internet / business phone carrier | – |
| 805-588 | Verizon Wireless | Mobile carrier | – |
| 805-605 | Teleport Communications America | Internet / business phone carrier | – |
| 805-606 | Teleport Communications America | Internet / business phone carrier | – |
| 805-717 | AT&T Mobility | Mobile carrier | – |
| 805-733 | Frontier | Local phone company | – |
| 805-734 | Frontier | Local phone company | – |
| 805-735 | Frontier | Local phone company | – |
| 805-736 | Frontier | Local phone company | – |
| 805-737 | Frontier | Local phone company | – |
| 805-740 | Frontier | Local phone company | – |
| 805-741 | Comcast | Internet / business phone carrier | – |
| 805-742 | Frontier | Local phone company | – |
| 805-743 | AT&T (local phone) | Local phone company | – |
| 805-757 | Verizon Wireless | Mobile carrier | 2001 |
| 805-800 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 805-819 | Comcast | Internet / business phone carrier | 2008 |
| 805-865 | Frontier | Local phone company | – |
| 805-866 | Onvoy | Internet / business phone carrier | – |
| 805-875 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 805-944 | Teleport Communications America | Internet / business phone carrier | 2004 |
| 805-972 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 820-218 | AT&T Mobility | Mobile carrier | 2023 |
| 820-228 | Twilio | Internet / business phone carrier | 2024 |
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.