Phone numbers in Arroyo Grande, California
Arroyo Grande has 19 phone prefixes in area codes 805, 820.
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 42%
- Local phone company 26%
- Internet / business phone carrier 32%
Every prefix in Arroyo Grande
Search the first six digits of a number in this list. If it's here, the number started in Arroyo Grande with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 805-202 | AT&T (local phone) | Local phone company | – |
| 805-270 | Tpx Communications | Internet / business phone carrier | 2001 |
| 805-473 | AT&T (local phone) | Local phone company | – |
| 805-474 | AT&T (local phone) | Local phone company | – |
| 805-481 | AT&T (local phone) | Local phone company | – |
| 805-489 | AT&T (local phone) | Local phone company | – |
| 805-519 | T-Mobile (including Sprint) | Mobile carrier | 2018 |
| 805-574 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 805-668 | Verizon Wireless | Mobile carrier | 2014 |
| 805-710 | AT&T Mobility | Mobile carrier | – |
| 805-809 | Tpx Communications | Internet / business phone carrier | 2022 |
| 805-825 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 805-840 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 805-904 | T-Mobile (including Sprint) | Mobile carrier | – |
| 805-980 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 805-994 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 820-216 | Boost / Virgin Mobile | Mobile carrier | 2023 |
| 820-252 | Onvoy | Internet / business phone carrier | 2026 |
| 820-346 | Fractel | Internet / business phone carrier | 2020 |
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.