Phone numbers in Silverado, California
Silverado has 61 phone prefixes in area codes 657, 714.
Biggest holders: Verizon Wireless, Fractel, Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 70%
- Local phone company 2%
- Internet / business phone carrier 28%
Every prefix in Silverado
Search the first six digits of a number in this list. If it's here, the number started in Silverado with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 657-209 | Verizon Wireless | Mobile carrier | 2017 |
| 657-260 | Verizon Wireless | Mobile carrier | 2015 |
| 657-287 | Verizon Wireless | Mobile carrier | 2016 |
| 657-293 | Onvoy | Internet / business phone carrier | 2015 |
| 657-297 | Onvoy | Internet / business phone carrier | 2016 |
| 657-310 | Verizon Wireless | Mobile carrier | 2017 |
| 657-314 | Level 3 (Lumen) | Internet / business phone carrier | 2017 |
| 657-316 | Verizon Wireless | Mobile carrier | 2016 |
| 657-317 | Peerless Network Of California | Internet / business phone carrier | 2018 |
| 657-323 | Verizon Wireless | Mobile carrier | 2017 |
| 657-332 | Onvoy | Internet / business phone carrier | 2016 |
| 657-343 | Verizon Wireless | Mobile carrier | 2016 |
| 657-344 | Verizon Wireless | Mobile carrier | 2016 |
| 657-351 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 657-353 | Verizon Wireless | Mobile carrier | 2017 |
| 657-359 | Bandwidth | Internet / business phone carrier | 2018 |
| 657-361 | Verizon Wireless | Mobile carrier | 2017 |
| 657-369 | Verizon Wireless | Mobile carrier | 2019 |
| 657-380 | Verizon Wireless | Mobile carrier | 2019 |
| 657-382 | Verizon Wireless | Mobile carrier | 2019 |
| 657-389 | Verizon Wireless | Mobile carrier | 2019 |
| 657-406 | Verizon Wireless | Mobile carrier | 2019 |
| 657-409 | Verizon Wireless | Mobile carrier | 2019 |
| 657-410 | Verizon Wireless | Mobile carrier | 2019 |
| 657-415 | Verizon Wireless | Mobile carrier | 2020 |
| 657-423 | Verizon Wireless | Mobile carrier | 2020 |
| 657-432 | Verizon Wireless | Mobile carrier | 2020 |
| 657-449 | Verizon Wireless | Mobile carrier | 2020 |
| 657-461 | Verizon Wireless | Mobile carrier | 2020 |
| 657-462 | Verizon Wireless | Mobile carrier | 2020 |
| 657-477 | Verizon Wireless | Mobile carrier | 2020 |
| 657-486 | Telnyx | Internet / business phone carrier | 2021 |
| 657-507 | Verizon Wireless | Mobile carrier | 2021 |
| 657-519 | Verizon Wireless | Mobile carrier | 2022 |
| 657-537 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 657-538 | Verizon Wireless | Mobile carrier | 2021 |
| 657-544 | Fractel | Internet / business phone carrier | 2021 |
| 657-587 | Fractel | Internet / business phone carrier | 2021 |
| 657-590 | Verizon Wireless | Mobile carrier | 2022 |
| 657-627 | Verizon Wireless | Mobile carrier | 2022 |
| 657-649 | Verizon Wireless | Mobile carrier | 2023 |
| 657-664 | Verizon Wireless | Mobile carrier | 2023 |
| 657-715 | Verizon Wireless | Mobile carrier | 2023 |
| 657-726 | Verizon Wireless | Mobile carrier | 2024 |
| 657-732 | Fractel | Internet / business phone carrier | 2019 |
| 657-784 | Verizon Wireless | Mobile carrier | 2025 |
| 657-788 | Fractel | Internet / business phone carrier | 2021 |
| 657-832 | TON80 Communications | Internet / business phone carrier | 2022 |
| 657-844 | Fractel | Internet / business phone carrier | 2021 |
| 657-850 | Verizon Wireless | Mobile carrier | 2026 |
| 657-880 | Verizon Wireless | Mobile carrier | 2026 |
| 657-886 | Verizon Wireless | Mobile carrier | 2026 |
| 657-946 | Fractel | Internet / business phone carrier | 2020 |
| 714-440 | Verizon Wireless | Mobile carrier | – |
| 714-613 | Teleport Communications America | Internet / business phone carrier | – |
| 714-649 | AT&T (local phone) | Local phone company | – |
| 714-707 | T-Mobile (including Sprint) | Mobile carrier | – |
| 714-709 | Verizon Wireless | Mobile carrier | 2002 |
| 714-710 | Comcast | Internet / business phone carrier | – |
| 714-874 | Onvoy | Internet / business phone carrier | – |
| 714-909 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
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.