Phone numbers in South Berndino, California
South Berndino has 103 phone prefixes in area codes 840, 909.
Biggest holders: AT&T Mobility, Frontier, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 52%
- Local phone company 17%
- Internet / business phone carrier 28%
- Paging service 1%
- Phone company 1%
Every prefix in South Berndino
Search the first six digits of a number in this list. If it's here, the number started in South Berndino with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 840-203 | AT&T Mobility | Mobile carrier | 2021 |
| 840-204 | AT&T Mobility | Mobile carrier | 2021 |
| 840-221 | Hd Carrier | Internet / business phone carrier | 2022 |
| 840-222 | Fractel | Internet / business phone carrier | 2020 |
| 840-224 | AT&T Mobility | Mobile carrier | 2022 |
| 840-227 | Verizon Wireless | Mobile carrier | 2023 |
| 840-255 | Onvoy | Internet / business phone carrier | 2024 |
| 840-266 | Verizon Wireless | Mobile carrier | 2024 |
| 840-280 | Teleport Communications America | Internet / business phone carrier | 2025 |
| 840-288 | MCImetro (Verizon Business) | Internet / business phone carrier | 2026 |
| 840-291 | Onvoy | Internet / business phone carrier | 2026 |
| 840-292 | AT&T Mobility | Mobile carrier | 2026 |
| 840-294 | Verizon Wireless | Mobile carrier | 2026 |
| 840-587 | Fractel | Internet / business phone carrier | 2022 |
| 840-996 | AT&T Mobility | Mobile carrier | 2026 |
| 909-205 | MetroPCS (T-Mobile) | Mobile carrier | 2007 |
| 909-246 | MetroPCS (T-Mobile) | Mobile carrier | 2007 |
| 909-252 | Frontier | Local phone company | 2008 |
| 909-266 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 909-269 | MetroPCS (T-Mobile) | Mobile carrier | 2009 |
| 909-277 | MetroPCS (T-Mobile) | Mobile carrier | 2010 |
| 909-289 | AT&T Mobility | Mobile carrier | 2001 |
| 909-300 | Onvoy | Internet / business phone carrier | – |
| 909-314 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 909-327 | T-Mobile (including Sprint) | Mobile carrier | 2004 |
| 909-332 | Wide Voice | Phone company | 2011 |
| 909-361 | Verizon Wireless | Mobile carrier | 2013 |
| 909-379 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 909-380 | Frontier | Local phone company | – |
| 909-381 | Frontier | Local phone company | – |
| 909-382 | Frontier | Local phone company | – |
| 909-383 | Frontier | Local phone company | – |
| 909-384 | Frontier | Local phone company | – |
| 909-385 | Bandwidth | Internet / business phone carrier | – |
| 909-386 | Frontier | Local phone company | – |
| 909-387 | Frontier | Local phone company | – |
| 909-388 | Frontier | Local phone company | – |
| 909-453 | Charter / Spectrum | Internet / business phone carrier | 2013 |
| 909-454 | MetroPCS (T-Mobile) | Mobile carrier | 2013 |
| 909-462 | T-Mobile (including Sprint) | Mobile carrier | – |
| 909-486 | Verizon Wireless | Mobile carrier | 2006 |
| 909-494 | Matrix Telecom, Llc. S/i/i Tnci | Internet / business phone carrier | – |
| 909-495 | Matrix Telecom, Llc. S/i/i Tnci | Internet / business phone carrier | – |
| 909-496 | T-Mobile (including Sprint) | Mobile carrier | – |
| 909-499 | AT&T Mobility | Mobile carrier | 2001 |
| 909-501 | Frontier | Local phone company | 2015 |
| 909-515 | Telnyx | Internet / business phone carrier | – |
| 909-520 | T-Mobile (including Sprint) | Mobile carrier | 2005 |
| 909-521 | Bandwidth | Internet / business phone carrier | 2010 |
| 909-522 | MetroPCS (T-Mobile) | Mobile carrier | 2004 |
| 909-531 | Verizon Wireless | Mobile carrier | 2014 |
| 909-534 | T-Mobile (including Sprint) | Mobile carrier | – |
| 909-553 | AT&T Mobility | Mobile carrier | – |
| 909-556 | AT&T Mobility | Mobile carrier | – |
| 909-567 | T-Mobile (including Sprint) | Mobile carrier | 2006 |
| 909-571 | Charter / Spectrum | Internet / business phone carrier | – |
| 909-577 | Fractel | Internet / business phone carrier | 2019 |
| 909-601 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 909-619 | Bandwidth | Internet / business phone carrier | 2020 |
| 909-648 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 909-650 | 33 Wireless | Mobile carrier | – |
| 909-658 | Frontier | Local phone company | – |
| 909-659 | MetroPCS (T-Mobile) | Mobile carrier | 2005 |
| 909-663 | AT&T Mobility | Mobile carrier | – |
| 909-665 | Level 3 (Lumen) | Internet / business phone carrier | 2014 |
| 909-677 | Verizon Wireless | Mobile carrier | 2007 |
| 909-690 | 33 Wireless | Mobile carrier | 2002 |
| 909-693 | Verizon Wireless | Mobile carrier | 2005 |
| 909-708 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 909-709 | AT&T Mobility | Mobile carrier | – |
| 909-722 | Spok | Paging service | – |
| 909-723 | Tpx Communications | Internet / business phone carrier | 2005 |
| 909-733 | Level 3 (Lumen) | Internet / business phone carrier | 2007 |
| 909-751 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 909-754 | AT&T Mobility | Mobile carrier | – |
| 909-756 | Onvoy | Internet / business phone carrier | 2016 |
| 909-761 | T-Mobile (including Sprint) | Mobile carrier | 2017 |
| 909-763 | T-Mobile (including Sprint) | Mobile carrier | 2006 |
| 909-771 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 909-800 | AT&T Mobility | Mobile carrier | 2001 |
| 909-806 | AT&T (local phone) | Local phone company | – |
| 909-831 | AT&T Mobility | Mobile carrier | 2003 |
| 909-832 | T-Mobile (including Sprint) | Mobile carrier | 2020 |
| 909-841 | MetroPCS (T-Mobile) | Mobile carrier | 2001 |
| 909-844 | AT&T Mobility | Mobile carrier | 2002 |
| 909-849 | AT&T Mobility | Mobile carrier | 2020 |
| 909-856 | AT&T Mobility | Mobile carrier | – |
| 909-884 | Frontier | Local phone company | – |
| 909-885 | Frontier | Local phone company | – |
| 909-888 | Frontier | Local phone company | – |
| 909-889 | Frontier | Local phone company | – |
| 909-890 | Frontier | Local phone company | – |
| 909-891 | Frontier | Local phone company | – |
| 909-893 | Twilio | Internet / business phone carrier | 2020 |
| 909-910 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 909-913 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 909-915 | Teleport Communications America | Internet / business phone carrier | – |
| 909-943 | AT&T Mobility | Mobile carrier | 2020 |
| 909-956 | AT&T Mobility | Mobile carrier | 2020 |
| 909-963 | Level 3 (Lumen) | Internet / business phone carrier | 2005 |
| 909-965 | T-Mobile (including Sprint) | Mobile carrier | 2005 |
| 909-991 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 909-998 | Tpx Communications | 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.