REDONDO prefixes in area code 424
NANPA records 38 assigned NXX blocks to rate center REDONDO in area code 424, 8.3% of the 460 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. 14 holders hold those blocks, the largest being ONVOY, LLC - CA (8), BANDWIDTH.COM CLEC, LLC - CA (5), LEVEL 3 COMMUNICATIONS, LLC - CA (4). The earliest assignment on record here is 2006-05-01 and the most recent 2026-08-19. 38 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 310 – 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 |
|---|---|---|---|---|
| 424-206 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2006-12-02 | yes | yes |
| 424-212 | T-Mobile T-MOBILE USA, INC. | 2006-12-15 | yes | yes |
| 424-237 | T-Mobile METROPCS NETWORKS, LLC | 2009-01-19 | yes | yes |
| 424-241 | Windstream PAETEC ITEL, LLC | 2008-03-13 | yes | yes |
| 424-247 | Charter TWC IP ENABLED SERVICES, LLC | – | yes | yes |
| 424-254 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2010-03-12 | yes | yes |
| 424-257 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2010-10-11 | yes | yes |
| 424-262 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2010-07-20 | yes | yes |
| 424-265 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2010-07-20 | yes | yes |
| 424-275 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2011-05-09 | yes | yes |
| 424-282 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 424-304 | Onvoy ONVOY, LLC - CA | 2015-12-24 | yes | yes |
| 424-327 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | – | yes | yes |
| 424-350 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2015-08-27 | yes | yes |
| 424-352 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2014-05-22 | yes | yes |
| 424-383 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2014-11-10 | yes | yes |
| 424-390 | T-Mobile T-MOBILE USA, INC. | 2016-08-29 | yes | yes |
| 424-392 | T-Mobile T-MOBILE USA, INC. | 2014-11-10 | yes | yes |
| 424-398 | Charter TWC IP ENABLED SERVICES, LLC | 2015-06-03 | yes | yes |
| 424-400 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 424-404 | Peerless PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 2017-06-30 | yes | yes |
| 424-408 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | yes | yes |
| 424-409 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2018-03-22 | yes | yes |
| 424-445 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2020-03-18 | yes | yes |
| 424-452 | Onvoy ONVOY, LLC - CA | 2016-01-05 | yes | yes |
| 424-458 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2021-08-26 | yes | yes |
| 424-471 | T-Mobile T-MOBILE USA, INC. | 2022-01-07 | yes | yes |
| 424-476 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 424-506 | Onvoy ONVOY, LLC - CA | 2024-01-26 | yes | yes |
| 424-561 | Onvoy ONVOY, LLC - CA | 2025-10-09 | yes | yes |
| 424-572 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2026-05-26 | yes | yes |
| 424-579 | Onvoy ONVOY, LLC - CA | 2026-08-19 | yes | no |
| 424-630 | Charter ONVOY SPECTRUM, LLC | 2024-11-07 | yes | yes |
| 424-634 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2006-05-01 | yes | yes |
| 424-677 | FRACTEL, LLC | 2020-05-28 | yes | yes |
| 424-866 | FRACTEL, LLC | 2021-09-16 | yes | yes |
| 424-903 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2006-12-13 | yes | yes |
| 424-966 | FRACTEL, LLC | 2020-11-06 | 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 |
|---|---|---|---|
| ONVOY, LLC - CA | Onvoy | 8 | 21.1% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 5 | 13.2% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 4 | 10.5% |
| T-MOBILE USA, INC. | T-Mobile | 4 | 10.5% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 3 | 7.9% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 3 | 7.9% |
| FRACTEL, LLC | – | 3 | 7.9% |
| TWC IP ENABLED SERVICES, LLC | Charter | 2 | 5.3% |
| METROPCS NETWORKS, LLC | T-Mobile | 1 | 2.6% |
| PAETEC ITEL, LLC | Windstream | 1 | 2.6% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 1 | 2.6% |
| COMCAST PHONE OF CALIFORNIA, LLC | Comcast | 1 | 2.6% |
| PEERLESS NETWORK OF CALIFORNIA, LLC - CA | Peerless | 1 | 2.6% |
| ONVOY SPECTRUM, LLC | Charter | 1 | 2.6% |
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 REDONDO in area code 424?
38 blocks: 206, 212, 237, 241, 247, 254, 257, 262, 265, 275, 282, 304 and 26 more, all listed in the table above.
Which carriers have numbers in REDONDO?
ONVOY, LLC - CA (8 blocks), BANDWIDTH.COM CLEC, LLC - CA (5 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (4 blocks), T-MOBILE USA, INC. (4 blocks), NEW CINGULAR WIRELESS PCS, LLC (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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 REDONDO 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.