DUBLN-SNRM prefixes in area code 925
NANPA records 42 assigned NXX blocks to rate center DUBLN-SNRM in area code 925, 6.6% 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. 13 holders hold those blocks, the largest being PACIFIC BELL (11), NEW CINGULAR WIRELESS PCS, LLC (10), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (3). The earliest assignment on record here is 2001-06-27 and the most recent 2026-06-26. 29 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 925-216 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 925-230 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 925-236 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 925-241 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 925-248 | AT&T PACIFIC BELL | – | yes | yes |
| 925-307 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 925-336 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-12-28 | yes | yes |
| 925-361 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 925-364 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 925-404 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 925-413 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 925-452 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 925-479 | AT&T PACIFIC BELL | – | yes | yes |
| 925-487 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 925-548 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 925-549 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | yes | yes |
| 925-551 | AT&T PACIFIC BELL | – | yes | yes |
| 925-556 | AT&T PACIFIC BELL | – | no | yes |
| 925-557 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 925-558 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 925-560 | AT&T PACIFIC BELL | – | yes | yes |
| 925-570 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 925-574 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 2001-06-27 | yes | yes |
| 925-577 | T-Mobile T-MOBILE USA, INC. | 2001-09-19 | yes | yes |
| 925-582 | Onvoy ONVOY, LLC - CA | 2026-06-26 | yes | yes |
| 925-587 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 925-640 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 925-719 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2002-04-16 | yes | yes |
| 925-785 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | no | yes |
| 925-803 | AT&T PACIFIC BELL | – | no | yes |
| 925-819 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | yes | yes |
| 925-828 | AT&T PACIFIC BELL | – | no | yes |
| 925-829 | AT&T PACIFIC BELL | – | no | yes |
| 925-833 | AT&T PACIFIC BELL | – | no | yes |
| 925-858 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 925-875 | AT&T PACIFIC BELL | – | yes | yes |
| 925-895 | T-Mobile METROPCS, INC. | – | yes | yes |
| 925-897 | T-Mobile T-MOBILE USA, INC. | 2021-09-17 | yes | yes |
| 925-905 | MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | yes | yes |
| 925-967 | AT&T PACIFIC BELL | – | yes | yes |
| 925-997 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 925-999 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | 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 | 11 | 26.2% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 10 | 23.8% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 3 | 7.1% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 3 | 7.1% |
| T-MOBILE USA, INC. | T-Mobile | 3 | 7.1% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 3 | 7.1% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 2 | 4.8% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 2 | 4.8% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 2.4% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 2.4% |
| ONVOY, LLC - CA | Onvoy | 1 | 2.4% |
| METROPCS, INC. | T-Mobile | 1 | 2.4% |
| MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | 1 | 2.4% |
Frequently asked
Which prefixes belong to DUBLN-SNRM in area code 925?
42 blocks: 216, 230, 236, 241, 248, 307, 336, 361, 364, 404, 413, 452 and 30 more, all listed in the table above.
Which carriers have numbers in DUBLN-SNRM?
PACIFIC BELL (11 blocks), NEW CINGULAR WIRELESS PCS, LLC (10 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (3 blocks), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (3 blocks), T-MOBILE USA, INC. (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (3 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is DUBLN-SNRM 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.