HAWTHORNE prefixes in area code 310
NANPA records 31 assigned NXX blocks to rate center HAWTHORNE in area code 310, 3.9% 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. 8 holders hold those blocks, the largest being PACIFIC BELL (22), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (2), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (2). The earliest assignment on record here is 2005-09-08 and the most recent 2023-06-26. 20 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 codes 352, 424, 775, 862 – 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 |
|---|---|---|---|---|
| 310-219 | AT&T PACIFIC BELL | – | yes | yes |
| 310-220 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 310-263 | AT&T PACIFIC BELL | – | yes | yes |
| 310-297 | AT&T PACIFIC BELL | – | yes | yes |
| 310-331 | AT&T PACIFIC BELL | – | yes | yes |
| 310-332 | AT&T PACIFIC BELL | – | no | yes |
| 310-340 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2017-01-16 | yes | yes |
| 310-349 | AT&T PACIFIC BELL | – | yes | yes |
| 310-355 | AT&T PACIFIC BELL | – | yes | yes |
| 310-363 | AT&T PACIFIC BELL | – | yes | yes |
| 310-531 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 310-536 | AT&T PACIFIC BELL | – | yes | yes |
| 310-643 | AT&T PACIFIC BELL | – | no | yes |
| 310-644 | AT&T PACIFIC BELL | – | no | yes |
| 310-675 | AT&T PACIFIC BELL | – | no | yes |
| 310-676 | AT&T PACIFIC BELL | – | no | yes |
| 310-679 | AT&T PACIFIC BELL | – | no | yes |
| 310-682 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 2017-07-03 | yes | yes |
| 310-706 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 310-725 | AT&T PACIFIC BELL | – | yes | yes |
| 310-727 | AT&T PACIFIC BELL | – | no | yes |
| 310-759 | Onvoy ONVOY, LLC - CA | 2023-06-26 | yes | yes |
| 310-812 | AT&T PACIFIC BELL | – | no | yes |
| 310-813 | AT&T PACIFIC BELL | – | no | yes |
| 310-814 | AT&T PACIFIC BELL | – | no | yes |
| 310-844 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 310-848 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2005-09-08 | yes | yes |
| 310-956 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 310-970 | AT&T PACIFIC BELL | – | yes | yes |
| 310-973 | AT&T PACIFIC BELL | – | no | yes |
| 310-978 | AT&T PACIFIC BELL | – | 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 |
|---|---|---|---|
| PACIFIC BELL | AT&T | 22 | 71% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 2 | 6.5% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 2 | 6.5% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 1 | 3.2% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 1 | 3.2% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 1 | 3.2% |
| ONVOY, LLC - CA | Onvoy | 1 | 3.2% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 1 | 3.2% |
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 HAWTHORNE in area code 310?
31 blocks: 219, 220, 263, 297, 331, 332, 340, 349, 355, 363, 531, 536 and 19 more, all listed in the table above.
Which carriers have numbers in HAWTHORNE?
PACIFIC BELL (22 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block), NEW CINGULAR WIRELESS PCS, 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 HAWTHORNE 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.