Phone numbers in Mt. View, California
Mt. View has 93 phone prefixes in area code 650.
Biggest holders: AT&T (local phone), T-Mobile (including Sprint), MCImetro (Verizon Business). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 23%
- Local phone company 47%
- Internet / business phone carrier 27%
- Paging service 2%
- Phone company 1%
Every prefix in Mt. View
Search the first six digits of a number in this list. If it's here, the number started in Mt. View with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 650-203 | Bandwidth | Internet / business phone carrier | 2015 |
| 650-210 | AT&T (local phone) | Local phone company | – |
| 650-214 | MCImetro (Verizon Business) | Internet / business phone carrier | 2007 |
| 650-215 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 650-220 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 650-224 | AT&T Mobility | Mobile carrier | – |
| 650-230 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 650-237 | AT&T (local phone) | Local phone company | – |
| 650-253 | MCImetro (Verizon Business) | Internet / business phone carrier | 2004 |
| 650-254 | AT&T (local phone) | Local phone company | – |
| 650-265 | AT&T (local phone) | Local phone company | – |
| 650-279 | Verizon Wireless | Mobile carrier | – |
| 650-280 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 650-282 | Astound Broadband | Internet / business phone carrier | – |
| 650-314 | AT&T (local phone) | Local phone company | – |
| 650-316 | Teleport Communications America | Internet / business phone carrier | – |
| 650-317 | Spok | Paging service | – |
| 650-318 | AT&T (local phone) | Local phone company | – |
| 650-335 | AT&T (local phone) | Local phone company | – |
| 650-336 | AT&T (local phone) | Local phone company | – |
| 650-386 | Teleport Communications America | Internet / business phone carrier | – |
| 650-390 | AT&T (local phone) | Local phone company | – |
| 650-396 | T-Mobile (including Sprint) | Mobile carrier | – |
| 650-404 | AT&T (local phone) | Local phone company | – |
| 650-406 | American Messaging Services | Paging service | – |
| 650-408 | AT&T Mobility | Mobile carrier | 2024 |
| 650-417 | Tpx Communications | Internet / business phone carrier | – |
| 650-426 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 650-428 | AT&T (local phone) | Local phone company | – |
| 650-429 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 650-439 | AT&T Mobility | Mobile carrier | 2018 |
| 650-447 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 650-448 | Peerless Network Of California | Internet / business phone carrier | 2016 |
| 650-450 | AT&T Mobility | Mobile carrier | 2002 |
| 650-495 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 650-499 | Bandwidth | Internet / business phone carrier | 2016 |
| 650-526 | AT&T (local phone) | Local phone company | – |
| 650-527 | AT&T (local phone) | Local phone company | – |
| 650-528 | AT&T (local phone) | Local phone company | – |
| 650-537 | T-Mobile (including Sprint) | Mobile carrier | – |
| 650-545 | North County Communication | Phone company | – |
| 650-564 | AT&T (local phone) | Local phone company | – |
| 650-567 | AT&T (local phone) | Local phone company | – |
| 650-582 | Telnyx | Internet / business phone carrier | 2021 |
| 650-584 | AT&T (local phone) | Local phone company | – |
| 650-602 | Verizon Wireless | Mobile carrier | 2021 |
| 650-603 | AT&T (local phone) | Local phone company | – |
| 650-604 | AT&T (local phone) | Local phone company | – |
| 650-605 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 650-623 | AT&T (local phone) | Local phone company | – |
| 650-625 | AT&T (local phone) | Local phone company | – |
| 650-641 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 650-664 | Verizon Wireless | Mobile carrier | 2022 |
| 650-669 | MetroPCS (T-Mobile) | Mobile carrier | 2001 |
| 650-691 | AT&T (local phone) | Local phone company | – |
| 650-693 | Teleport Communications America | Internet / business phone carrier | – |
| 650-694 | AT&T (local phone) | Local phone company | – |
| 650-695 | Bandwidth | Internet / business phone carrier | 2015 |
| 650-705 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 650-744 | Fractel | Internet / business phone carrier | 2020 |
| 650-764 | Onvoy | Internet / business phone carrier | 2025 |
| 650-772 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 650-789 | Fractel | Internet / business phone carrier | 2021 |
| 650-793 | Verizon Wireless | Mobile carrier | – |
| 650-806 | Verizon Wireless | Mobile carrier | 2026 |
| 650-810 | Tpx Communications | Internet / business phone carrier | – |
| 650-841 | Onvoy | Internet / business phone carrier | 2026 |
| 650-861 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 650-864 | AT&T (local phone) | Local phone company | – |
| 650-880 | AT&T Mobility | Mobile carrier | 2018 |
| 650-903 | AT&T (local phone) | Local phone company | – |
| 650-919 | AT&T (local phone) | Local phone company | – |
| 650-930 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 650-932 | AT&T (local phone) | Local phone company | – |
| 650-933 | AT&T (local phone) | Local phone company | – |
| 650-934 | AT&T (local phone) | Local phone company | – |
| 650-937 | AT&T (local phone) | Local phone company | – |
| 650-938 | AT&T (local phone) | Local phone company | – |
| 650-940 | AT&T (local phone) | Local phone company | – |
| 650-943 | AT&T (local phone) | Local phone company | – |
| 650-944 | AT&T (local phone) | Local phone company | – |
| 650-960 | AT&T (local phone) | Local phone company | – |
| 650-961 | AT&T (local phone) | Local phone company | – |
| 650-962 | AT&T (local phone) | Local phone company | – |
| 650-963 | Onvoy | Internet / business phone carrier | – |
| 650-964 | AT&T (local phone) | Local phone company | – |
| 650-965 | AT&T (local phone) | Local phone company | – |
| 650-966 | AT&T (local phone) | Local phone company | – |
| 650-967 | AT&T (local phone) | Local phone company | – |
| 650-968 | AT&T (local phone) | Local phone company | – |
| 650-969 | AT&T (local phone) | Local phone company | – |
| 650-988 | AT&T (local phone) | Local phone company | – |
| 650-996 | AT&T Mobility | Mobile carrier | – |
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.