CONCORD prefixes in area code 925
NANPA records 89 assigned NXX blocks to rate center CONCORD in area code 925, 13.9% 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. 20 holders hold those blocks, the largest being PACIFIC BELL (29), METROPCS, INC. (9), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (8). The earliest assignment on record here is 2001-03-01 and the most recent 2026-07-21. 61 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 217, 434, 470, 517 – 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 |
|---|---|---|---|---|
| 925-207 | T-Mobile METROPCS, INC. | 2001-10-18 | yes | yes |
| 925-222 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 925-246 | AT&T PACIFIC BELL | – | yes | yes |
| 925-250 | T-Mobile METROPCS, INC. | – | yes | yes |
| 925-265 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 925-270 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 925-288 | AT&T PACIFIC BELL | – | no | yes |
| 925-305 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 925-326 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 925-332 | Peerless PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 2012-10-04 | yes | yes |
| 925-334 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2011-07-19 | yes | yes |
| 925-338 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2011-07-22 | yes | yes |
| 925-346 | American Messaging AMERICAN MESSAGING SERVICES, LLC | – | no | yes |
| 925-348 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-01-28 | yes | yes |
| 925-349 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 925-356 | AT&T PACIFIC BELL | – | yes | yes |
| 925-363 | AT&T PACIFIC BELL | – | no | yes |
| 925-375 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2016-06-29 | yes | yes |
| 925-381 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 925-383 | T-Mobile METROPCS, INC. | – | yes | yes |
| 925-391 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2013-11-25 | yes | yes |
| 925-405 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 925-408 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 925-412 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2018-11-19 | yes | yes |
| 925-414 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2019-07-31 | yes | yes |
| 925-419 | Onvoy ONVOY, LLC - CA | 2023-10-02 | yes | yes |
| 925-421 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2012-01-27 | yes | yes |
| 925-429 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 925-435 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 925-446 | T-Mobile METROPCS, INC. | 2012-06-25 | yes | yes |
| 925-459 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 925-466 | FRACTEL, LLC | 2020-09-17 | yes | yes |
| 925-471 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 925-483 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | 2015-04-23 | yes | yes |
| 925-490 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2014-05-23 | yes | yes |
| 925-494 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2015-04-16 | yes | yes |
| 925-496 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2021-12-23 | yes | yes |
| 925-497 | T-Mobile METROPCS, INC. | 2001-08-22 | no | yes |
| 925-499 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 2017-12-26 | yes | yes |
| 925-507 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2023-01-04 | yes | yes |
| 925-510 | T-Mobile METROPCS, INC. | 2018-03-23 | yes | yes |
| 925-515 | Onvoy ONVOY, LLC - CA | 2020-11-11 | yes | yes |
| 925-521 | AT&T PACIFIC BELL | – | yes | yes |
| 925-536 | Telnyx TELNYX LLC | 2017-03-17 | yes | yes |
| 925-566 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 925-586 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | no | yes |
| 925-595 | T-Mobile METROPCS, INC. | 2001-05-18 | yes | yes |
| 925-602 | AT&T PACIFIC BELL | – | no | yes |
| 925-603 | AT&T PACIFIC BELL | – | yes | yes |
| 925-609 | AT&T PACIFIC BELL | – | yes | yes |
| 925-633 | FRACTEL, LLC | 2021-08-05 | yes | yes |
| 925-644 | FRACTEL, LLC | 2021-07-13 | yes | yes |
| 925-646 | AT&T PACIFIC BELL | – | no | yes |
| 925-653 | Onvoy ONVOY, LLC - CA | 2026-07-21 | yes | yes |
| 925-655 | FRACTEL, LLC | 2019-03-20 | yes | yes |
| 925-671 | AT&T PACIFIC BELL | – | no | yes |
| 925-674 | AT&T PACIFIC BELL | – | no | yes |
| 925-675 | AT&T PACIFIC BELL | – | no | yes |
| 925-676 | AT&T PACIFIC BELL | – | no | yes |
| 925-677 | AT&T PACIFIC BELL | – | yes | yes |
| 925-680 | AT&T PACIFIC BELL | – | no | yes |
| 925-681 | AT&T PACIFIC BELL | – | yes | yes |
| 925-682 | AT&T PACIFIC BELL | – | no | yes |
| 925-685 | AT&T PACIFIC BELL | – | no | yes |
| 925-686 | AT&T PACIFIC BELL | – | no | yes |
| 925-687 | AT&T PACIFIC BELL | – | no | yes |
| 925-688 | AT&T PACIFIC BELL | – | yes | yes |
| 925-689 | AT&T PACIFIC BELL | – | no | yes |
| 925-691 | AT&T PACIFIC BELL | – | no | yes |
| 925-692 | AT&T PACIFIC BELL | – | no | yes |
| 925-695 | T-Mobile METROPCS, INC. | – | yes | yes |
| 925-726 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 925-768 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2001-06-25 | no | yes |
| 925-771 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 2001-03-01 | yes | yes |
| 925-787 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | no | yes |
| 925-798 | AT&T PACIFIC BELL | – | no | yes |
| 925-808 | AT&T PACIFIC BELL | – | yes | yes |
| 925-822 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 925-825 | AT&T PACIFIC BELL | – | no | yes |
| 925-826 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 925-827 | AT&T PACIFIC BELL | – | no | yes |
| 925-849 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 925-852 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2001-04-24 | yes | yes |
| 925-864 | T-Mobile METROPCS, INC. | – | yes | yes |
| 925-887 | MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | yes | yes |
| 925-890 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 925-925 | Onvoy ONVOY, LLC - CA | 2022-09-27 | yes | yes |
| 925-969 | AT&T PACIFIC BELL | – | no | yes |
| 925-995 | Charter ONVOY SPECTRUM, LLC | 2024-01-04 | 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 | 29 | 32.6% |
| METROPCS, INC. | T-Mobile | 9 | 10.1% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 8 | 9% |
| ONVOY, LLC - CA | Onvoy | 6 | 6.7% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 6 | 6.7% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 5 | 5.6% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 4 | 4.5% |
| FRACTEL, LLC | – | 4 | 4.5% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 3 | 3.4% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 3 | 3.4% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 2 | 2.2% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 2 | 2.2% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 1.1% |
| PEERLESS NETWORK OF CALIFORNIA, LLC - CA | Peerless | 1 | 1.1% |
| AMERICAN MESSAGING SERVICES, LLC | American Messaging | 1 | 1.1% |
| T-MOBILE USA, INC. | T-Mobile | 1 | 1.1% |
| COMCAST PHONE OF CALIFORNIA, LLC | Comcast | 1 | 1.1% |
| TELNYX LLC | Telnyx | 1 | 1.1% |
| MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | 1 | 1.1% |
| ONVOY SPECTRUM, LLC | Charter | 1 | 1.1% |
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 CONCORD in area code 925?
89 blocks: 207, 222, 246, 250, 265, 270, 288, 305, 326, 332, 334, 338 and 77 more, all listed in the table above.
Which carriers have numbers in CONCORD?
PACIFIC BELL (29 blocks), METROPCS, INC. (9 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (8 blocks), ONVOY, LLC - CA (6 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (6 blocks), BANDWIDTH.COM CLEC, LLC - CA (5 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is CONCORD 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.