Phone numbers in Montebello, California
Montebello has 133 phone prefixes in area codes 213, 323, 738.
Biggest holders: MetroPCS (T-Mobile), AT&T (local phone), AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 63%
- Local phone company 15%
- Internet / business phone carrier 19%
- Paging service 1%
- Phone company 2%
Every prefix in Montebello
Search the first six digits of a number in this list. If it's here, the number started in Montebello with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 213-420 | T-Mobile (including Sprint) | Mobile carrier | 2020 |
| 213-424 | Verizon Wireless | Mobile carrier | 2020 |
| 213-472 | AT&T Mobility | Mobile carrier | 2020 |
| 213-475 | T-Mobile (including Sprint) | Mobile carrier | 2019 |
| 213-491 | AT&T Mobility | Mobile carrier | 2020 |
| 213-502 | AT&T Mobility | Mobile carrier | 2021 |
| 213-526 | T-Mobile (including Sprint) | Mobile carrier | 2020 |
| 213-541 | AT&T Mobility | Mobile carrier | 2020 |
| 213-552 | AT&T Mobility | Mobile carrier | 2021 |
| 213-565 | AT&T Mobility | Mobile carrier | 2021 |
| 213-578 | AT&T Mobility | Mobile carrier | 2021 |
| 213-654 | Verizon Wireless | Mobile carrier | 2022 |
| 213-671 | Teleport Communications America | Internet / business phone carrier | 2022 |
| 213-678 | Fractel | Internet / business phone carrier | 2020 |
| 213-719 | Onvoy | Internet / business phone carrier | 2023 |
| 213-724 | Fractel | Internet / business phone carrier | 2020 |
| 213-731 | Onvoy | Internet / business phone carrier | 2020 |
| 213-826 | Verizon Wireless | Mobile carrier | 2024 |
| 213-874 | Bandwidth | Internet / business phone carrier | 2024 |
| 213-885 | Onvoy | Internet / business phone carrier | 2025 |
| 213-962 | Verizon Wireless | Mobile carrier | 2025 |
| 323-201 | Tpx Communications | Internet / business phone carrier | – |
| 323-213 | Verizon Wireless | Mobile carrier | 2006 |
| 323-215 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 323-216 | MetroPCS (T-Mobile) | Mobile carrier | 2001 |
| 323-236 | AT&T Mobility | Mobile carrier | 2001 |
| 323-246 | Verizon Wireless | Mobile carrier | 2006 |
| 323-248 | AT&T (local phone) | Local phone company | 2010 |
| 323-253 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 323-270 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 323-271 | AT&T (local phone) | Local phone company | – |
| 323-273 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 323-278 | AT&T (local phone) | Local phone company | – |
| 323-281 | 33 Wireless | Mobile carrier | – |
| 323-303 | Level 3 (Lumen) | Internet / business phone carrier | 2006 |
| 323-313 | Verizon Wireless | Mobile carrier | – |
| 323-314 | AT&T Mobility | Mobile carrier | – |
| 323-324 | American Messaging Services | Paging service | – |
| 323-346 | Tpx Communications | Internet / business phone carrier | – |
| 323-353 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 323-358 | MetroPCS (T-Mobile) | Mobile carrier | 2011 |
| 323-359 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 323-365 | AT&T Mobility | Mobile carrier | – |
| 323-385 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 323-399 | MetroPCS (T-Mobile) | Mobile carrier | 2007 |
| 323-400 | Verizon Wireless | Mobile carrier | – |
| 323-416 | Peerless Network Of California | Internet / business phone carrier | 2012 |
| 323-427 | MetroPCS (T-Mobile) | Mobile carrier | 2011 |
| 323-430 | Verizon Wireless | Mobile carrier | 2013 |
| 323-434 | AT&T Mobility | Mobile carrier | 2007 |
| 323-437 | MetroPCS (T-Mobile) | Mobile carrier | 2012 |
| 323-439 | MetroPCS (T-Mobile) | Mobile carrier | 2007 |
| 323-440 | AT&T Mobility | Mobile carrier | – |
| 323-453 | MetroPCS (T-Mobile) | Mobile carrier | 2013 |
| 323-458 | MetroPCS (T-Mobile) | Mobile carrier | 2012 |
| 323-477 | MetroPCS (T-Mobile) | Mobile carrier | 2012 |
| 323-479 | MetroPCS (T-Mobile) | Mobile carrier | 2007 |
| 323-480 | Verizon Wireless | Mobile carrier | 2012 |
| 323-482 | Verizon Wireless | Mobile carrier | 2005 |
| 323-483 | MetroPCS (T-Mobile) | Mobile carrier | 2012 |
| 323-485 | Level 3 (Lumen) | Internet / business phone carrier | 2006 |
| 323-490 | MCImetro (Verizon Business) | Internet / business phone carrier | 2001 |
| 323-494 | MetroPCS (T-Mobile) | Mobile carrier | 2007 |
| 323-500 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 323-501 | MetroPCS (T-Mobile) | Mobile carrier | 2007 |
| 323-506 | MetroPCS (T-Mobile) | Mobile carrier | 2007 |
| 323-514 | MetroPCS (T-Mobile) | Mobile carrier | 2001 |
| 323-516 | Verizon Wireless | Mobile carrier | – |
| 323-517 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 323-519 | T-Mobile (including Sprint) | Mobile carrier | 2007 |
| 323-530 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 323-548 | MetroPCS (T-Mobile) | Mobile carrier | 2014 |
| 323-558 | Tpx Communications | Internet / business phone carrier | – |
| 323-594 | AT&T Mobility | Mobile carrier | 2007 |
| 323-597 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 323-598 | MetroPCS (T-Mobile) | Mobile carrier | 2014 |
| 323-614 | MetroPCS (T-Mobile) | Mobile carrier | 2007 |
| 323-621 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 323-622 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 323-624 | North County Communication | Phone company | – |
| 323-626 | North County Communication | Phone company | – |
| 323-629 | MetroPCS (T-Mobile) | Mobile carrier | 2007 |
| 323-631 | MetroPCS (T-Mobile) | Mobile carrier | 2014 |
| 323-637 | MetroPCS (T-Mobile) | Mobile carrier | 2005 |
| 323-659 | Verizon Wireless | Mobile carrier | 2021 |
| 323-670 | MetroPCS (T-Mobile) | Mobile carrier | 2014 |
| 323-680 | MetroPCS (T-Mobile) | Mobile carrier | 2007 |
| 323-691 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 323-693 | Onvoy | Internet / business phone carrier | – |
| 323-695 | Verizon Wireless | Mobile carrier | 2007 |
| 323-697 | AT&T Mobility | Mobile carrier | 2001 |
| 323-707 | MetroPCS (T-Mobile) | Mobile carrier | 2001 |
| 323-712 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 323-714 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 323-715 | AT&T Mobility | Mobile carrier | 2001 |
| 323-718 | MetroPCS (T-Mobile) | Mobile carrier | 2006 |
| 323-720 | AT&T (local phone) | Local phone company | – |
| 323-721 | AT&T (local phone) | Local phone company | – |
| 323-722 | AT&T (local phone) | Local phone company | – |
| 323-724 | AT&T (local phone) | Local phone company | – |
| 323-725 | AT&T (local phone) | Local phone company | – |
| 323-726 | AT&T (local phone) | Local phone company | – |
| 323-727 | AT&T (local phone) | Local phone company | – |
| 323-728 | AT&T (local phone) | Local phone company | – |
| 323-742 | T-Mobile (including Sprint) | Mobile carrier | 2006 |
| 323-765 | AT&T Mobility | Mobile carrier | 2015 |
| 323-767 | Teleport Communications America | Internet / business phone carrier | – |
| 323-787 | MetroPCS (T-Mobile) | Mobile carrier | 2006 |
| 323-797 | Verizon Wireless | Mobile carrier | 2014 |
| 323-803 | MCImetro (Verizon Business) | Internet / business phone carrier | 2001 |
| 323-816 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 323-827 | MetroPCS (T-Mobile) | Mobile carrier | 2014 |
| 323-832 | AT&T (local phone) | Local phone company | – |
| 323-837 | AT&T (local phone) | Local phone company | – |
| 323-838 | AT&T (local phone) | Local phone company | – |
| 323-853 | Peerless Network Of California | Internet / business phone carrier | 2016 |
| 323-867 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 323-869 | AT&T (local phone) | Local phone company | – |
| 323-884 | MetroPCS (T-Mobile) | Mobile carrier | 2014 |
| 323-887 | AT&T (local phone) | Local phone company | – |
| 323-888 | AT&T (local phone) | Local phone company | – |
| 323-889 | AT&T (local phone) | Local phone company | – |
| 323-890 | AT&T (local phone) | Local phone company | – |
| 323-893 | AT&T Mobility | Mobile carrier | 2001 |
| 323-895 | AT&T Mobility | Mobile carrier | 2008 |
| 323-914 | Teleport Communications America | Internet / business phone carrier | 2017 |
| 323-926 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 323-945 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 323-947 | AT&T (local phone) | Local phone company | – |
| 323-949 | T-Mobile (including Sprint) | Mobile carrier | 2019 |
| 323-972 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 738-333 | Wide Voice | Phone company | 2025 |
| 738-666 | Onvoy | Internet / business phone carrier | 2025 |
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.