Phone numbers in Encinitas, California
Encinitas has 38 phone prefixes in area codes 442, 760.
Biggest holders: AT&T (local phone), T-Mobile (including Sprint), Tpx Communications. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 29%
- Local phone company 29%
- Internet / business phone carrier 42%
Every prefix in Encinitas
Search the first six digits of a number in this list. If it's here, the number started in Encinitas with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 442-320 | Vonage America | Internet / business phone carrier | 2020 |
| 442-357 | Verizon Wireless | Mobile carrier | 2021 |
| 442-369 | Verizon Wireless | Mobile carrier | 2021 |
| 442-390 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 442-413 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 442-568 | TON80 Communications | Internet / business phone carrier | 2022 |
| 760-230 | Comcast | Internet / business phone carrier | – |
| 760-274 | Tpx Communications | Internet / business phone carrier | – |
| 760-334 | Tpx Communications | Internet / business phone carrier | – |
| 760-402 | T-Mobile (including Sprint) | Mobile carrier | – |
| 760-436 | AT&T (local phone) | Local phone company | – |
| 760-452 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 760-454 | Onvoy | Internet / business phone carrier | – |
| 760-456 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 760-479 | AT&T (local phone) | Local phone company | – |
| 760-487 | Comcast | Internet / business phone carrier | – |
| 760-492 | T-Mobile (including Sprint) | Mobile carrier | – |
| 760-516 | Tpx Communications | Internet / business phone carrier | – |
| 760-557 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 760-613 | T-Mobile (including Sprint) | Mobile carrier | – |
| 760-632 | AT&T (local phone) | Local phone company | – |
| 760-633 | AT&T (local phone) | Local phone company | – |
| 760-634 | AT&T (local phone) | Local phone company | – |
| 760-635 | AT&T (local phone) | Local phone company | – |
| 760-642 | AT&T (local phone) | Local phone company | – |
| 760-649 | Onvoy | Internet / business phone carrier | 2022 |
| 760-652 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 760-697 | Teleport Communications America | Internet / business phone carrier | – |
| 760-704 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 760-753 | AT&T (local phone) | Local phone company | – |
| 760-783 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 760-809 | T-Mobile (including Sprint) | Mobile carrier | – |
| 760-815 | AT&T Mobility | Mobile carrier | – |
| 760-840 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 760-846 | AT&T Mobility | Mobile carrier | – |
| 760-942 | AT&T (local phone) | Local phone company | – |
| 760-943 | AT&T (local phone) | Local phone company | – |
| 760-944 | AT&T (local phone) | Local 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.