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

LACRSCENTA prefixes in area code 818

NANPA records 17 assigned NXX blocks to rate center LACRSCENTA in area code 818, 2.2% of the 781 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 PACIFIC BELL (6), LEVEL 3 COMMUNICATIONS, LLC - CA (2), T-MOBILE USA, INC. (2). The earliest assignment on record here is 2001-01-25 and the most recent 2023-10-02. 14 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 747 – overlay codes cover the same geography, so a rate center is served by all of them.

17 assigned blocks – 2.2% of 818
10 holders of record
14 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
818-236 AT&T PACIFIC BELL – yes yes
818-248 AT&T PACIFIC BELL – no yes
818-249 AT&T PACIFIC BELL – no yes
818-275 Onvoy ONVOY, LLC - CA 2008-02-15 yes yes
818-279 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2001-01-25 yes yes
818-306 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
818-330 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS – yes yes
818-369 MATRIX TELECOM, LLC. S/I/I TNCI - CA – yes yes
818-405 T-Mobile T-MOBILE USA, INC. – yes yes
818-418 AT&T NEW CINGULAR WIRELESS PCS, LLC 2023-10-02 yes yes
818-541 AT&T PACIFIC BELL – yes yes
818-542 AT&T PACIFIC BELL – yes yes
818-658 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA – yes yes
818-797 Bandwidth BANDWIDTH.COM CLEC, LLC - CA 2006-10-09 yes yes
818-862 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA 2006-10-16 yes yes
818-873 T-Mobile T-MOBILE USA, INC. 2020-01-15 yes yes
818-957 AT&T PACIFIC BELL – 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

HolderBrandBlocksShare here
PACIFIC BELL AT&T 6 35.3%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 2 11.8%
T-MOBILE USA, INC. T-Mobile 2 11.8%
ONVOY, LLC - CA Onvoy 1 5.9%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 5.9%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 1 5.9%
MATRIX TELECOM, LLC. S/I/I TNCI - CA – 1 5.9%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 5.9%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA Verizon 1 5.9%
BANDWIDTH.COM CLEC, LLC - CA Bandwidth 1 5.9%

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 LACRSCENTA in area code 818?

17 blocks: 236, 248, 249, 275, 279, 306, 330, 369, 405, 418, 541, 542 and 5 more, all listed in the table above.

Which carriers have numbers in LACRSCENTA?

PACIFIC BELL (6 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (2 blocks), T-MOBILE USA, INC. (2 blocks), ONVOY, LLC - CA (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is LACRSCENTA 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 818

All 781 prefixes in 818