HEMT SNJC prefixes in area code 951
NANPA records 17 assigned NXX blocks to rate center HEMT SNJC in area code 951, 2.4% of the 696 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. 10 holders hold those blocks, the largest being T-MOBILE USA, INC. (4), ONVOY, LLC - CA (3), METROPCS NETWORKS, LLC (2). The earliest assignment on record here is 2010-06-09 and the most recent 2026-08-27. 16 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 951-292 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2010-06-09 | yes | yes |
| 951-327 | MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | yes | yes |
| 951-350 | Peerless PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 2013-03-22 | yes | yes |
| 951-426 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 951-451 | T-Mobile METROPCS NETWORKS, LLC | 2018-05-09 | yes | yes |
| 951-474 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2015-06-04 | yes | yes |
| 951-487 | Frontier FRONTIER CALIFORNIA INC. | – | yes | yes |
| 951-604 | T-Mobile T-MOBILE USA, INC. | 2021-11-18 | yes | yes |
| 951-629 | T-Mobile T-MOBILE USA, INC. | 2021-04-12 | yes | yes |
| 951-632 | T-Mobile T-MOBILE USA, INC. | 2023-06-15 | yes | yes |
| 951-651 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 951-654 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 951-665 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 951-673 | T-Mobile METROPCS NETWORKS, LLC | 2023-10-09 | yes | yes |
| 951-726 | Onvoy ONVOY, LLC - CA | 2024-01-31 | yes | yes |
| 951-854 | Onvoy ONVOY, LLC - CA | 2026-08-27 | yes | no |
| 951-946 | FRACTEL, LLC | 2020-07-02 | yes | 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 |
|---|---|---|---|
| T-MOBILE USA, INC. | T-Mobile | 4 | 23.5% |
| ONVOY, LLC - CA | Onvoy | 3 | 17.6% |
| METROPCS NETWORKS, LLC | T-Mobile | 2 | 11.8% |
| FRONTIER CALIFORNIA INC. | Frontier | 2 | 11.8% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 1 | 5.9% |
| MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | 1 | 5.9% |
| PEERLESS NETWORK OF CALIFORNIA, LLC - CA | Peerless | 1 | 5.9% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 1 | 5.9% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 5.9% |
| FRACTEL, LLC | – | 1 | 5.9% |
Frequently asked
Which prefixes belong to HEMT SNJC in area code 951?
17 blocks: 292, 327, 350, 426, 451, 474, 487, 604, 629, 632, 651, 654 and 5 more, all listed in the table above.
Which carriers have numbers in HEMT SNJC?
T-MOBILE USA, INC. (4 blocks), ONVOY, LLC - CA (3 blocks), METROPCS NETWORKS, LLC (2 blocks), FRONTIER CALIFORNIA INC. (2 blocks), BANDWIDTH.COM CLEC, LLC - CA (1 block), MATRIX TELECOM, LLC. S/I/I TNCI - CA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is HEMT SNJC 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.