LIVERMORE prefixes in area code 925
NANPA records 50 assigned NXX blocks to rate center LIVERMORE in area code 925, 7.8% of the 640 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. 19 holders hold those blocks, the largest being PACIFIC BELL (17), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (4), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (3). The earliest assignment on record here is 2001-04-24 and the most recent 2026-08-27. 35 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 270, 515 – 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 |
|---|---|---|---|---|
| 925-215 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 925-243 | AT&T PACIFIC BELL | – | yes | yes |
| 925-245 | AT&T PACIFIC BELL | – | no | yes |
| 925-273 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 925-290 | XO CALIFORNIA, INC. | – | yes | yes |
| 925-292 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | – | yes | yes |
| 925-294 | AT&T PACIFIC BELL | – | yes | yes |
| 925-315 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 925-321 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-11-30 | yes | yes |
| 925-337 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2002-01-28 | yes | yes |
| 925-339 | T-Mobile METROPCS, INC. | 2001-09-21 | no | yes |
| 925-341 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2020-04-21 | yes | yes |
| 925-344 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 925-347 | American Messaging AMERICAN MESSAGING SERVICES, LLC | – | no | yes |
| 925-371 | AT&T PACIFIC BELL | – | yes | yes |
| 925-373 | AT&T PACIFIC BELL | – | no | yes |
| 925-409 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2017-08-18 | yes | yes |
| 925-422 | AT&T PACIFIC BELL | – | no | yes |
| 925-423 | AT&T PACIFIC BELL | – | no | yes |
| 925-424 | AT&T PACIFIC BELL | – | no | yes |
| 925-443 | AT&T PACIFIC BELL | – | no | yes |
| 925-447 | AT&T PACIFIC BELL | – | no | yes |
| 925-449 | AT&T PACIFIC BELL | – | no | yes |
| 925-453 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 925-454 | AT&T PACIFIC BELL | – | no | yes |
| 925-455 | AT&T PACIFIC BELL | – | yes | yes |
| 925-456 | AT&T PACIFIC BELL | – | yes | yes |
| 925-493 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 925-495 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2016-08-02 | yes | yes |
| 925-505 | Dish BOOST SUBSCRIBERCO L.L.C. | 2022-07-28 | yes | yes |
| 925-518 | T-Mobile METROPCS, INC. | – | yes | yes |
| 925-525 | T-Mobile METROPCS, INC. | – | yes | yes |
| 925-533 | FRACTEL, LLC | 2020-09-17 | yes | yes |
| 925-534 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2019-08-06 | yes | yes |
| 925-537 | TON80 COMMUNICATIONS, LLC | 2022-01-14 | yes | yes |
| 925-541 | SHELCOMM | 2024-09-12 | no | yes |
| 925-579 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2001-04-24 | yes | yes |
| 925-583 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 925-591 | Onvoy ONVOY, LLC - CA | 2026-08-27 | yes | no |
| 925-599 | FRACTEL, LLC | 2021-01-27 | yes | yes |
| 925-605 | MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | yes | yes |
| 925-606 | AT&T PACIFIC BELL | – | no | yes |
| 925-667 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 2001-05-18 | yes | yes |
| 925-724 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 925-758 | FRACTEL, LLC | 2019-03-20 | yes | yes |
| 925-784 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | no | yes |
| 925-800 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 925-960 | AT&T PACIFIC BELL | – | yes | yes |
| 925-961 | AT&T PACIFIC BELL | – | yes | yes |
| 925-980 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | 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
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| PACIFIC BELL | AT&T | 17 | 34% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 4 | 8% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 3 | 6% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 3 | 6% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 3 | 6% |
| METROPCS, INC. | T-Mobile | 3 | 6% |
| FRACTEL, LLC | – | 3 | 6% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 2 | 4% |
| ONVOY, LLC - CA | Onvoy | 2 | 4% |
| XO CALIFORNIA, INC. | – | 1 | 2% |
| COMCAST PHONE OF CALIFORNIA, LLC | Comcast | 1 | 2% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 2% |
| AMERICAN MESSAGING SERVICES, LLC | American Messaging | 1 | 2% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 2% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 1 | 2% |
| BOOST SUBSCRIBERCO L.L.C. | Dish | 1 | 2% |
| TON80 COMMUNICATIONS, LLC | – | 1 | 2% |
| SHELCOMM | – | 1 | 2% |
| MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | 1 | 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 LIVERMORE in area code 925?
50 blocks: 215, 243, 245, 273, 290, 292, 294, 315, 321, 337, 339, 341 and 38 more, all listed in the table above.
Which carriers have numbers in LIVERMORE?
PACIFIC BELL (17 blocks), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (4 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (3 blocks), NEW CINGULAR WIRELESS PCS, LLC (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (3 blocks), METROPCS, INC. (3 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is LIVERMORE 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.