PITTSBURG prefixes in area code 925
NANPA records 19 assigned NXX blocks to rate center PITTSBURG in area code 925, 3.0% 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. 12 holders hold those blocks, the largest being PACIFIC BELL (6), NEW CINGULAR WIRELESS PCS, LLC (2), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (2). The earliest assignment on record here is 2002-02-22 and the most recent 2026-01-05. 13 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 417, 430, 603, 618 – 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 |
|---|---|---|---|---|
| 925-203 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-02-22 | yes | yes |
| 925-220 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2023-10-02 | yes | yes |
| 925-252 | AT&T PACIFIC BELL | – | yes | yes |
| 925-267 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 925-318 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 925-427 | AT&T PACIFIC BELL | – | no | yes |
| 925-431 | AT&T PACIFIC BELL | – | yes | yes |
| 925-432 | AT&T PACIFIC BELL | – | no | yes |
| 925-439 | AT&T PACIFIC BELL | – | no | yes |
| 925-473 | AT&T PACIFIC BELL | – | no | yes |
| 925-492 | COMMIO, LLC | 2021-09-24 | yes | yes |
| 925-526 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 925-547 | Dish BOOST SUBSCRIBERCO L.L.C. | 2026-01-05 | yes | yes |
| 925-573 | NORTH COUNTY COMMUNICATION CORPORATION - CA | – | no | yes |
| 925-597 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | yes | yes |
| 925-635 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 925-665 | MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | yes | yes |
| 925-698 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 925-799 | FRACTEL, LLC | 2019-03-20 | 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 | 6 | 31.6% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 2 | 10.5% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 2 | 10.5% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 1 | 5.3% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 5.3% |
| COMMIO, LLC | – | 1 | 5.3% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 1 | 5.3% |
| BOOST SUBSCRIBERCO L.L.C. | Dish | 1 | 5.3% |
| NORTH COUNTY COMMUNICATION CORPORATION - CA | – | 1 | 5.3% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 5.3% |
| MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | 1 | 5.3% |
| FRACTEL, LLC | – | 1 | 5.3% |
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 PITTSBURG in area code 925?
19 blocks: 203, 220, 252, 267, 318, 427, 431, 432, 439, 473, 492, 526 and 7 more, all listed in the table above.
Which carriers have numbers in PITTSBURG?
PACIFIC BELL (6 blocks), NEW CINGULAR WIRELESS PCS, LLC (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block), LEVEL 3 TELECOM OF CALIFORNIA, LP - CA (1 block), COMMIO, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is PITTSBURG 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.