MT VIEW prefixes in area code 650
NANPA records 93 assigned NXX blocks to rate center MT VIEW in area code 650, 13.0% of the 717 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 20 holders hold those blocks, the largest being PACIFIC BELL (43), T-MOBILE USA, INC. (8), NEW CINGULAR WIRELESS PCS, LLC (6). The earliest assignment on record here is 2001-09-21 and the most recent 2026-09-24. 76 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 307, 417, 580, 828 – overlay codes cover the same geography, so a rate center is served by all of them.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 650-203 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2015-12-01 | yes | yes |
| 650-210 | AT&T PACIFIC BELL | – | yes | yes |
| 650-214 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 2007-02-15 | yes | yes |
| 650-215 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 650-220 | T-Mobile T-MOBILE USA, INC. | 2023-10-10 | yes | yes |
| 650-224 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 650-230 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | no | yes |
| 650-237 | AT&T PACIFIC BELL | – | yes | yes |
| 650-253 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 2004-04-27 | yes | yes |
| 650-254 | AT&T PACIFIC BELL | – | yes | yes |
| 650-265 | AT&T AT&T - LOCAL | – | yes | yes |
| 650-279 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | no | yes |
| 650-280 | T-Mobile METROPCS, INC. | – | yes | yes |
| 650-282 | ASTOUND BROADBAND, LLC - CA | – | yes | yes |
| 650-314 | AT&T PACIFIC BELL | – | yes | yes |
| 650-316 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 650-317 | Spok SPOK, INC. | – | no | yes |
| 650-318 | AT&T PACIFIC BELL | – | yes | yes |
| 650-335 | AT&T PACIFIC BELL | – | yes | yes |
| 650-336 | AT&T PACIFIC BELL | – | yes | yes |
| 650-386 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 650-390 | AT&T PACIFIC BELL | – | yes | yes |
| 650-396 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 650-404 | AT&T PACIFIC BELL | – | yes | yes |
| 650-406 | American Messaging AMERICAN MESSAGING SERVICES, LLC | – | no | yes |
| 650-408 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2024-11-25 | yes | yes |
| 650-417 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 650-426 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 650-428 | AT&T PACIFIC BELL | – | no | yes |
| 650-429 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 650-439 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2018-10-04 | yes | yes |
| 650-447 | T-Mobile T-MOBILE USA, INC. | 2016-08-30 | yes | yes |
| 650-448 | Peerless PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 2016-08-31 | yes | yes |
| 650-450 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-01-28 | yes | yes |
| 650-495 | T-Mobile T-MOBILE USA, INC. | 2015-08-26 | yes | yes |
| 650-499 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2016-04-25 | yes | yes |
| 650-526 | AT&T PACIFIC BELL | – | yes | yes |
| 650-527 | AT&T PACIFIC BELL | – | no | yes |
| 650-528 | AT&T PACIFIC BELL | – | yes | yes |
| 650-537 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 650-545 | NORTH COUNTY COMMUNICATION CORPORATION - CA | – | no | yes |
| 650-564 | AT&T PACIFIC BELL | – | yes | yes |
| 650-567 | AT&T PACIFIC BELL | – | yes | yes |
| 650-582 | Telnyx TELNYX LLC | 2021-01-29 | yes | yes |
| 650-584 | AT&T PACIFIC BELL | – | yes | yes |
| 650-602 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2021-10-26 | yes | yes |
| 650-603 | AT&T PACIFIC BELL | – | yes | yes |
| 650-604 | AT&T PACIFIC BELL | – | no | yes |
| 650-605 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 650-623 | AT&T PACIFIC BELL | – | yes | yes |
| 650-625 | AT&T PACIFIC BELL | – | yes | yes |
| 650-641 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 650-664 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2022-06-16 | yes | yes |
| 650-669 | T-Mobile METROPCS, INC. | 2001-09-21 | yes | yes |
| 650-691 | AT&T PACIFIC BELL | – | yes | yes |
| 650-693 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | no | yes |
| 650-694 | AT&T PACIFIC BELL | – | yes | yes |
| 650-695 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2015-01-20 | yes | yes |
| 650-705 | T-Mobile T-MOBILE USA, INC. | 2022-09-20 | yes | yes |
| 650-744 | FRACTEL, LLC | 2020-08-25 | yes | yes |
| 650-764 | Onvoy ONVOY, LLC - CA | 2025-11-20 | yes | yes |
| 650-772 | T-Mobile T-MOBILE USA, INC. | 2014-09-30 | yes | yes |
| 650-789 | FRACTEL, LLC | 2021-08-05 | yes | yes |
| 650-793 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | yes | yes |
| 650-806 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2026-09-24 | yes | no |
| 650-810 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 650-841 | Onvoy ONVOY, LLC - CA | 2026-06-26 | yes | yes |
| 650-861 | T-Mobile T-MOBILE USA, INC. | 2002-09-19 | yes | yes |
| 650-864 | AT&T PACIFIC BELL | – | yes | yes |
| 650-880 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2018-03-22 | yes | yes |
| 650-903 | AT&T PACIFIC BELL | – | yes | yes |
| 650-919 | AT&T PACIFIC BELL | – | yes | yes |
| 650-930 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 650-932 | AT&T PACIFIC BELL | – | no | yes |
| 650-933 | AT&T PACIFIC BELL | – | yes | yes |
| 650-934 | AT&T PACIFIC BELL | – | yes | yes |
| 650-937 | AT&T PACIFIC BELL | – | yes | yes |
| 650-938 | AT&T PACIFIC BELL | – | yes | yes |
| 650-940 | AT&T PACIFIC BELL | – | yes | yes |
| 650-943 | AT&T PACIFIC BELL | – | yes | yes |
| 650-944 | AT&T PACIFIC BELL | – | yes | yes |
| 650-960 | AT&T PACIFIC BELL | – | yes | yes |
| 650-961 | AT&T PACIFIC BELL | – | no | yes |
| 650-962 | AT&T PACIFIC BELL | – | yes | yes |
| 650-963 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 650-964 | AT&T PACIFIC BELL | – | no | yes |
| 650-965 | AT&T PACIFIC BELL | – | yes | yes |
| 650-966 | AT&T PACIFIC BELL | – | yes | yes |
| 650-967 | AT&T PACIFIC BELL | – | no | yes |
| 650-968 | AT&T PACIFIC BELL | – | no | yes |
| 650-969 | AT&T PACIFIC BELL | – | no | yes |
| 650-988 | AT&T PACIFIC BELL | – | yes | yes |
| 650-996 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.
Who holds the blocks
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| PACIFIC BELL | AT&T | 43 | 46.2% |
| T-MOBILE USA, INC. | T-Mobile | 8 | 8.6% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 6 | 6.5% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 5 | 5.4% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 4 | 4.3% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 3 | 3.2% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 3 | 3.2% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 3 | 3.2% |
| ONVOY, LLC - CA | Onvoy | 3 | 3.2% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 2 | 2.2% |
| METROPCS, INC. | T-Mobile | 2 | 2.2% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 2 | 2.2% |
| FRACTEL, LLC | – | 2 | 2.2% |
| AT&T - LOCAL | AT&T | 1 | 1.1% |
| ASTOUND BROADBAND, LLC - CA | – | 1 | 1.1% |
| SPOK, INC. | Spok | 1 | 1.1% |
| AMERICAN MESSAGING SERVICES, LLC | American Messaging | 1 | 1.1% |
| PEERLESS NETWORK OF CALIFORNIA, LLC - CA | Peerless | 1 | 1.1% |
| NORTH COUNTY COMMUNICATION CORPORATION - CA | – | 1 | 1.1% |
| TELNYX LLC | Telnyx | 1 | 1.1% |
Same rate center in other codes
Overlay codes cover the same geography, so one rate center is served by all of them.
Frequently asked
Which prefixes belong to MT VIEW in area code 650?
93 blocks: 203, 210, 214, 215, 220, 224, 230, 237, 253, 254, 265, 279 and 81 more, all listed in the table above.
Which carriers have numbers in MT VIEW?
PACIFIC BELL (43 blocks), T-MOBILE USA, INC. (8 blocks), NEW CINGULAR WIRELESS PCS, LLC (6 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (5 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (4 blocks), BANDWIDTH.COM CLEC, LLC - CA (3 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is MT VIEW a city?
It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.