LA MESA prefixes in area code 619
NANPA records 61 assigned NXX blocks to rate center LA MESA in area code 619, 7.8% of the 785 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 PACIFIC BELL (19), T-MOBILE USA, INC. (8), COMCAST PHONE OF CALIFORNIA, LLC (6). The earliest assignment on record here is 2001-10-18 and the most recent 2022-01-14. 44 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 575, 858 – 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 |
|---|---|---|---|---|
| 619-248 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 619-251 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 619-303 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | – | no | yes |
| 619-315 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 619-335 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 619-337 | AT&T PACIFIC BELL | – | yes | yes |
| 619-340 | T-Mobile T-MOBILE USA, INC. | 2016-09-16 | yes | yes |
| 619-355 | 33 WIRELESS INC. | – | no | yes |
| 619-388 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 619-403 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 619-414 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 619-415 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 619-433 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 619-439 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | 2017-10-09 | yes | yes |
| 619-454 | T-Mobile METROPCS, INC. | 2001-10-18 | yes | yes |
| 619-460 | AT&T PACIFIC BELL | – | no | yes |
| 619-461 | AT&T PACIFIC BELL | – | no | yes |
| 619-462 | AT&T PACIFIC BELL | – | no | yes |
| 619-463 | AT&T PACIFIC BELL | – | no | yes |
| 619-464 | AT&T PACIFIC BELL | – | yes | yes |
| 619-465 | AT&T PACIFIC BELL | – | no | yes |
| 619-466 | AT&T PACIFIC BELL | – | no | yes |
| 619-467 | AT&T AT&T ENTERPRISES, LLC | 2006-01-25 | yes | yes |
| 619-469 | AT&T PACIFIC BELL | – | no | yes |
| 619-490 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | yes | yes |
| 619-567 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 619-589 | AT&T PACIFIC BELL | – | no | yes |
| 619-597 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2014-10-30 | yes | yes |
| 619-609 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 2006-01-18 | yes | yes |
| 619-613 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2019-09-13 | yes | yes |
| 619-639 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 619-644 | AT&T PACIFIC BELL | – | no | yes |
| 619-648 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 619-657 | T-Mobile T-MOBILE USA, INC. | 2021-02-25 | yes | yes |
| 619-660 | AT&T PACIFIC BELL | – | no | yes |
| 619-667 | AT&T PACIFIC BELL | – | no | yes |
| 619-668 | AT&T PACIFIC BELL | – | no | yes |
| 619-669 | AT&T PACIFIC BELL | – | yes | yes |
| 619-670 | AT&T PACIFIC BELL | – | no | yes |
| 619-697 | AT&T PACIFIC BELL | – | no | yes |
| 619-698 | AT&T PACIFIC BELL | – | no | yes |
| 619-713 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | – | yes | yes |
| 619-724 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 619-740 | AT&T PACIFIC BELL | – | yes | yes |
| 619-741 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | – | yes | yes |
| 619-750 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 619-771 | Onvoy ONVOY, LLC - CA | 2016-09-07 | yes | yes |
| 619-772 | T-Mobile METROPCS, INC. | – | yes | yes |
| 619-776 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2020-07-06 | yes | yes |
| 619-784 | T-Mobile METROPCS, INC. | – | yes | yes |
| 619-797 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 619-825 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | – | yes | yes |
| 619-828 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 619-832 | Onvoy ONVOY, LLC - CA | 2015-06-23 | yes | yes |
| 619-859 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2020-12-14 | yes | yes |
| 619-867 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 619-916 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 619-928 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 619-945 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | 2021-06-04 | yes | yes |
| 619-951 | T-Mobile T-MOBILE USA, INC. | 2021-09-13 | yes | yes |
| 619-983 | T-Mobile T-MOBILE USA, INC. | 2022-01-14 | 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 | 19 | 31.1% |
| T-MOBILE USA, INC. | T-Mobile | 8 | 13.1% |
| COMCAST PHONE OF CALIFORNIA, LLC | Comcast | 6 | 9.8% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 5 | 8.2% |
| ONVOY, LLC - CA | Onvoy | 5 | 8.2% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 4 | 6.6% |
| METROPCS, INC. | T-Mobile | 3 | 4.9% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 3 | 4.9% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 2 | 3.3% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 2 | 3.3% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 1.6% |
| 33 WIRELESS INC. | – | 1 | 1.6% |
| AT&T ENTERPRISES, LLC | AT&T | 1 | 1.6% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 1.6% |
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 LA MESA in area code 619?
61 blocks: 248, 251, 303, 315, 335, 337, 340, 355, 388, 403, 414, 415 and 49 more, all listed in the table above.
Which carriers have numbers in LA MESA?
PACIFIC BELL (19 blocks), T-MOBILE USA, INC. (8 blocks), COMCAST PHONE OF CALIFORNIA, LLC (6 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (5 blocks), ONVOY, LLC - CA (5 blocks), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (4 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is LA MESA 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.