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

W ANGELES prefixes in area code 310

NANPA records 69 assigned NXX blocks to rate center W ANGELES in area code 310, 8.8% of the 786 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 FRONTIER CALIFORNIA INC. (39), NEW CINGULAR WIRELESS PCS, LLC (7), LEVEL 3 COMMUNICATIONS, LLC - CA (4). The earliest assignment on record here is 2001-04-17 and the most recent 2012-10-02. 31 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 424 – overlay codes cover the same geography, so a rate center is served by all of them.

69 assigned blocks – 8.8% of 310
14 holders of record
31 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
310-206 Frontier FRONTIER CALIFORNIA INC. – no yes
310-207 Frontier FRONTIER CALIFORNIA INC. – no yes
310-208 Frontier FRONTIER CALIFORNIA INC. – yes yes
310-209 Frontier FRONTIER CALIFORNIA INC. – yes yes
310-210 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
310-231 Frontier FRONTIER CALIFORNIA INC. – no yes
310-234 Frontier FRONTIER CALIFORNIA INC. – no yes
310-235 Frontier FRONTIER CALIFORNIA INC. – no yes
310-254 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA – yes yes
310-268 Frontier FRONTIER CALIFORNIA INC. – no yes
310-295 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA 2005-09-29 yes yes
310-307 T-Mobile T-MOBILE USA, INC. 2012-10-02 yes yes
310-312 Frontier FRONTIER CALIFORNIA INC. – no yes
310-405 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – yes yes
310-440 Frontier FRONTIER CALIFORNIA INC. – no yes
310-441 Frontier FRONTIER CALIFORNIA INC. – no yes
310-442 Frontier FRONTIER CALIFORNIA INC. – no yes
310-443 Frontier FRONTIER CALIFORNIA INC. – no yes
310-444 Frontier FRONTIER CALIFORNIA INC. – no yes
310-445 Frontier FRONTIER CALIFORNIA INC. – no yes
310-446 Frontier FRONTIER CALIFORNIA INC. – no yes
310-447 Frontier FRONTIER CALIFORNIA INC. – yes yes
310-470 Frontier FRONTIER CALIFORNIA INC. – no yes
310-471 Frontier FRONTIER CALIFORNIA INC. – no yes
310-472 Frontier FRONTIER CALIFORNIA INC. – no yes
310-473 Frontier FRONTIER CALIFORNIA INC. – no yes
310-474 Frontier FRONTIER CALIFORNIA INC. – no yes
310-475 Frontier FRONTIER CALIFORNIA INC. – no yes
310-476 Frontier FRONTIER CALIFORNIA INC. – no yes
310-477 Frontier FRONTIER CALIFORNIA INC. – no yes
310-478 Frontier FRONTIER CALIFORNIA INC. – no yes
310-479 Frontier FRONTIER CALIFORNIA INC. – no yes
310-481 AT&T PACIFIC BELL (COMPETITIVE) – no yes
310-500 Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA – yes yes
310-562 AT&T NEW CINGULAR WIRELESS PCS, LLC 2001-04-17 no yes
310-571 Frontier FRONTIER CALIFORNIA INC. – yes yes
310-575 Frontier FRONTIER CALIFORNIA INC. – yes yes
310-592 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
310-597 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
310-622 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
310-655 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
310-689 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA – yes yes
310-690 SHELCOMM 2001-06-26 no yes
310-694 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
310-696 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS – yes yes
310-709 T-Mobile T-MOBILE USA, INC. – yes yes
310-775 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA 2005-12-29 yes yes
310-794 Frontier FRONTIER CALIFORNIA INC. – no yes
310-806 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS – yes yes
310-820 Frontier FRONTIER CALIFORNIA INC. – no yes
310-824 Frontier FRONTIER CALIFORNIA INC. – yes yes
310-825 Frontier FRONTIER CALIFORNIA INC. – no yes
310-826 Frontier FRONTIER CALIFORNIA INC. – no yes
310-869 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
310-873 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS – yes yes
310-882 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – yes yes
310-889 Frontier FRONTIER CALIFORNIA INC. – yes yes
310-893 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA – yes yes
310-903 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – yes yes
310-909 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
310-914 Frontier FRONTIER CALIFORNIA INC. – no yes
310-923 AT&T NEW CINGULAR WIRELESS PCS, LLC 2002-03-11 yes yes
310-943 Onvoy ONVOY, LLC - CA – yes yes
310-948 AT&T NEW CINGULAR WIRELESS PCS, LLC 2002-07-29 yes yes
310-954 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA – yes yes
310-966 Frontier FRONTIER CALIFORNIA INC. – yes yes
310-979 Frontier FRONTIER CALIFORNIA INC. – no yes
310-983 AT&T PACIFIC BELL (COMPETITIVE) – yes yes
310-996 Frontier FRONTIER CALIFORNIA INC. – 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
FRONTIER CALIFORNIA INC. Frontier 39 56.5%
NEW CINGULAR WIRELESS PCS, LLC AT&T 7 10.1%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 4 5.8%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA Verizon 3 4.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA Verizon 3 4.3%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 3 4.3%
T-MOBILE USA, INC. T-Mobile 2 2.9%
PACIFIC BELL (COMPETITIVE) AT&T 2 2.9%
LEVEL 3 TELECOM OF CALIFORNIA, LP - CA Lumen 1 1.4%
AMERICAN MESSAGING SERVICES, LLC American Messaging 1 1.4%
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 1 1.4%
SHELCOMM – 1 1.4%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 1.4%
ONVOY, LLC - CA Onvoy 1 1.4%

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 W ANGELES in area code 310?

69 blocks: 206, 207, 208, 209, 210, 231, 234, 235, 254, 268, 295, 307 and 57 more, all listed in the table above.

Which carriers have numbers in W ANGELES?

FRONTIER CALIFORNIA INC. (39 blocks), NEW CINGULAR WIRELESS PCS, LLC (7 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (4 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (3 blocks), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (3 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is W ANGELES 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 310

All 786 prefixes in 310