NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

MALIBU prefixes in area code 424

NANPA records 16 assigned NXX blocks to rate center MALIBU in area code 424, 3.5% 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. 10 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (3), BANDWIDTH.COM CLEC, LLC - CA (3), ONVOY, LLC - CA (2). The earliest assignment on record here is 2006-04-26 and the most recent 2025-03-11. 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 310 – overlay codes cover the same geography, so a rate center is served by all of them.

16 assigned blocks – 3.5% of 424
10 holders of record
16 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
424-234 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2007-09-15 yes yes
424-235 T-Mobile METROPCS NETWORKS, LLC 2007-09-18 yes yes
424-346 Bandwidth BANDWIDTH.COM CLEC, LLC - CA 2014-04-17 yes yes
424-388 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 2016-06-01 yes yes
424-395 T-Mobile T-MOBILE USA, INC. 2015-02-24 yes yes
424-422 Bandwidth BANDWIDTH.COM CLEC, LLC - CA 2019-02-08 yes yes
424-425 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2018-03-06 yes yes
424-441 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2020-01-31 yes yes
424-464 Bandwidth BANDWIDTH.COM CLEC, LLC - CA 2022-01-10 yes yes
424-493 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA 2023-06-29 yes yes
424-524 Charter ONVOY SPECTRUM, LLC 2021-01-28 yes yes
424-548 Onvoy ONVOY, LLC - CA 2025-03-11 yes yes
424-644 Charter CHARTER IP ENABLED SERVICES, LLC 2006-04-26 yes yes
424-781 Onvoy ONVOY, LLC - CA 2006-10-04 yes yes
424-786 FRACTEL, LLC 2020-07-31 yes yes
424-799 FRACTEL, LLC 2021-02-25 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

HolderBrandBlocksShare here
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA Verizon 3 18.8%
BANDWIDTH.COM CLEC, LLC - CA Bandwidth 3 18.8%
ONVOY, LLC - CA Onvoy 2 12.5%
FRACTEL, LLC – 2 12.5%
METROPCS NETWORKS, LLC T-Mobile 1 6.2%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA Verizon 1 6.2%
T-MOBILE USA, INC. T-Mobile 1 6.2%
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 1 6.2%
ONVOY SPECTRUM, LLC Charter 1 6.2%
CHARTER IP ENABLED SERVICES, LLC Charter 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 MALIBU in area code 424?

16 blocks: 234, 235, 346, 388, 395, 422, 425, 441, 464, 493, 524, 548 and 4 more, all listed in the table above.

Which carriers have numbers in MALIBU?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (3 blocks), BANDWIDTH.COM CLEC, LLC - CA (3 blocks), ONVOY, LLC - CA (2 blocks), FRACTEL, LLC (2 blocks), METROPCS NETWORKS, LLC (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES 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 MALIBU 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.

Other rate centers in 424

All 460 prefixes in 424