SNCRL-BLMT prefixes in area code 650
NANPA records 44 assigned NXX blocks to rate center SNCRL-BLMT in area code 650, 6.1% of the 717 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 (22), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (4), LEVEL 3 COMMUNICATIONS, LLC - CA (4). The earliest assignment on record here is 2001-01-25 and the most recent 2026-04-08. 31 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 |
|---|---|---|---|---|
| 650-226 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 650-232 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 650-264 | AT&T AT&T - LOCAL | – | yes | yes |
| 650-339 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | yes | yes |
| 650-394 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 650-412 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 650-413 | AT&T PACIFIC BELL | – | yes | yes |
| 650-453 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 650-486 | AT&T PACIFIC BELL | – | yes | yes |
| 650-489 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 650-500 | American Messaging AMERICAN MESSAGING SERVICES, LLC | – | no | yes |
| 650-506 | AT&T PACIFIC BELL | – | no | yes |
| 650-508 | AT&T PACIFIC BELL | – | no | yes |
| 650-517 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 650-551 | AT&T PACIFIC BELL | – | yes | yes |
| 650-585 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 650-590 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 650-591 | AT&T PACIFIC BELL | – | no | yes |
| 650-592 | AT&T PACIFIC BELL | – | no | yes |
| 650-593 | AT&T PACIFIC BELL | – | no | yes |
| 650-594 | AT&T PACIFIC BELL | – | yes | yes |
| 650-595 | AT&T PACIFIC BELL | – | yes | yes |
| 650-596 | AT&T PACIFIC BELL | – | no | yes |
| 650-597 | UTILITY TELECOM GROUP, LLC - CA | 2008-10-04 | yes | yes |
| 650-598 | AT&T PACIFIC BELL | – | no | yes |
| 650-607 | AT&T PACIFIC BELL | – | no | yes |
| 650-610 | AT&T PACIFIC BELL | – | yes | yes |
| 650-620 | AT&T PACIFIC BELL | – | yes | yes |
| 650-622 | AT&T PACIFIC BELL | – | yes | yes |
| 650-628 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 650-631 | AT&T PACIFIC BELL | – | no | yes |
| 650-632 | AT&T PACIFIC BELL | – | yes | yes |
| 650-633 | AT&T PACIFIC BELL | – | no | yes |
| 650-637 | AT&T PACIFIC BELL | – | no | yes |
| 650-640 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2022-07-01 | yes | yes |
| 650-654 | AT&T PACIFIC BELL | – | yes | yes |
| 650-674 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2022-10-24 | yes | yes |
| 650-730 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | yes | yes |
| 650-765 | Onvoy ONVOY, LLC - CA | 2026-04-08 | yes | yes |
| 650-769 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 650-801 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 650-802 | AT&T PACIFIC BELL | – | no | yes |
| 650-830 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2001-01-25 | yes | yes |
| 650-832 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | 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 | 22 | 50% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 4 | 9.1% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 4 | 9.1% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 2 | 4.5% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 2 | 4.5% |
| ONVOY, LLC - CA | Onvoy | 2 | 4.5% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 1 | 2.3% |
| AT&T - LOCAL | AT&T | 1 | 2.3% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 2.3% |
| AMERICAN MESSAGING SERVICES, LLC | American Messaging | 1 | 2.3% |
| UTILITY TELECOM GROUP, LLC - CA | – | 1 | 2.3% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 1 | 2.3% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 1 | 2.3% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 2.3% |
Frequently asked
Which prefixes belong to SNCRL-BLMT in area code 650?
44 blocks: 226, 232, 264, 339, 394, 412, 413, 453, 486, 489, 500, 506 and 32 more, all listed in the table above.
Which carriers have numbers in SNCRL-BLMT?
PACIFIC BELL (22 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (4 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (4 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (2 blocks), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (2 blocks), ONVOY, LLC - CA (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is SNCRL-BLMT 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.