S BERNDINO prefixes in area code 840
NANPA records 16 assigned NXX blocks to rate center S BERNDINO in area code 840, 12.3% of the 130 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. 8 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC (5), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (3), FRACTEL, LLC (2). The earliest assignment on record here is 2020-12-24 and the most recent 2026-10-23. 16 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 code 909 – 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 |
|---|---|---|---|---|
| 840-203 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2021-07-29 | yes | yes |
| 840-204 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2021-07-29 | yes | yes |
| 840-221 | HD CARRIER LLC | 2022-10-21 | yes | yes |
| 840-222 | FRACTEL, LLC | 2020-12-24 | yes | yes |
| 840-224 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2022-12-06 | yes | yes |
| 840-227 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2023-04-13 | yes | yes |
| 840-255 | Onvoy ONVOY, LLC - CA | 2024-03-18 | yes | yes |
| 840-266 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2024-10-09 | yes | yes |
| 840-280 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 2025-08-11 | yes | yes |
| 840-288 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2026-02-19 | yes | yes |
| 840-291 | Onvoy ONVOY, LLC - CA | 2026-07-28 | yes | yes |
| 840-292 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2026-08-05 | yes | no |
| 840-294 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2026-10-06 | yes | no |
| 840-299 | Vonage VONAGE AMERICA LLC | 2026-10-23 | yes | no |
| 840-587 | FRACTEL, LLC | 2022-02-23 | yes | yes |
| 840-996 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2026-05-20 | 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 |
|---|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 5 | 31.2% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 3 | 18.8% |
| FRACTEL, LLC | – | 2 | 12.5% |
| ONVOY, LLC - CA | Onvoy | 2 | 12.5% |
| HD CARRIER LLC | – | 1 | 6.2% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 6.2% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 1 | 6.2% |
| VONAGE AMERICA LLC | Vonage | 1 | 6.2% |
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 S BERNDINO in area code 840?
16 blocks: 203, 204, 221, 222, 224, 227, 255, 266, 280, 288, 291, 292 and 4 more, all listed in the table above.
Which carriers have numbers in S BERNDINO?
NEW CINGULAR WIRELESS PCS, LLC (5 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (3 blocks), FRACTEL, LLC (2 blocks), ONVOY, LLC - CA (2 blocks), HD CARRIER LLC (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - 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 S BERNDINO 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.