OKLD BKLY prefixes in area code 510
NANPA records 70 assigned NXX blocks to rate center OKLD BKLY in area code 510, 8.9% of the 785 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 (34), T-MOBILE USA, INC. (7), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (4). The earliest assignment on record here is 2001-03-22 and the most recent 2021-02-25. 49 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 code 341 – 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 |
|---|---|---|---|---|
| 510-204 | AT&T PACIFIC BELL | – | no | yes |
| 510-225 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 510-229 | AT&T PACIFIC BELL | – | yes | yes |
| 510-277 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 510-280 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 510-292 | AT&T PACIFIC BELL | – | yes | yes |
| 510-295 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | yes | yes |
| 510-345 | T-Mobile T-MOBILE USA, INC. | 2016-01-15 | yes | yes |
| 510-356 | AT&T PACIFIC BELL | 2007-11-28 | yes | yes |
| 510-365 | T-Mobile T-MOBILE USA, INC. | 2013-09-26 | yes | yes |
| 510-416 | NORTH COUNTY COMMUNICATION CORPORATION - CA | – | no | yes |
| 510-423 | Windstream PAETEC ITEL, LLC | 2008-11-07 | yes | yes |
| 510-486 | AT&T PACIFIC BELL | – | no | yes |
| 510-495 | AT&T PACIFIC BELL | – | yes | yes |
| 510-524 | AT&T PACIFIC BELL | – | no | yes |
| 510-525 | AT&T PACIFIC BELL | – | no | yes |
| 510-526 | AT&T PACIFIC BELL | – | no | yes |
| 510-527 | AT&T PACIFIC BELL | – | no | yes |
| 510-528 | AT&T PACIFIC BELL | – | no | yes |
| 510-529 | AT&T PACIFIC BELL | – | yes | yes |
| 510-540 | AT&T PACIFIC BELL | – | no | yes |
| 510-542 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 510-548 | AT&T PACIFIC BELL | – | no | yes |
| 510-549 | AT&T PACIFIC BELL | – | yes | yes |
| 510-558 | AT&T PACIFIC BELL | – | yes | yes |
| 510-559 | AT&T PACIFIC BELL | – | yes | yes |
| 510-570 | T-Mobile T-MOBILE USA, INC. | 2016-09-26 | yes | yes |
| 510-616 | SONIC TELECOM, LLC - CA | 2017-12-18 | yes | yes |
| 510-631 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2015-10-02 | yes | yes |
| 510-642 | AT&T PACIFIC BELL | – | no | yes |
| 510-643 | AT&T PACIFIC BELL | – | no | yes |
| 510-644 | AT&T PACIFIC BELL | – | no | yes |
| 510-646 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2013-03-07 | yes | yes |
| 510-647 | AT&T PACIFIC BELL | – | yes | yes |
| 510-649 | AT&T PACIFIC BELL | – | no | yes |
| 510-664 | AT&T PACIFIC BELL | – | no | yes |
| 510-665 | AT&T PACIFIC BELL | – | yes | yes |
| 510-666 | AT&T PACIFIC BELL | – | yes | yes |
| 510-679 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2015-04-13 | yes | yes |
| 510-684 | T-Mobile METROPCS, INC. | – | yes | yes |
| 510-704 | AT&T PACIFIC BELL | – | yes | yes |
| 510-705 | AT&T PACIFIC BELL | – | yes | yes |
| 510-717 | T-Mobile T-MOBILE USA, INC. | 2002-09-19 | yes | yes |
| 510-725 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 510-809 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 510-812 | T-Mobile METROPCS, INC. | – | yes | yes |
| 510-833 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | 2014-07-28 | yes | yes |
| 510-841 | AT&T PACIFIC BELL | – | no | yes |
| 510-843 | AT&T PACIFIC BELL | – | no | yes |
| 510-845 | AT&T PACIFIC BELL | – | no | yes |
| 510-847 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2001-03-22 | no | yes |
| 510-848 | AT&T PACIFIC BELL | – | no | yes |
| 510-849 | AT&T PACIFIC BELL | – | yes | yes |
| 510-859 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 510-868 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 510-883 | AT&T PACIFIC BELL | – | yes | yes |
| 510-898 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 510-900 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 510-926 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | yes | yes |
| 510-944 | T-Mobile T-MOBILE USA, INC. | 2014-10-03 | yes | yes |
| 510-960 | AT&T AT&T - LOCAL | – | yes | yes |
| 510-973 | T-Mobile T-MOBILE USA, INC. | 2021-02-25 | yes | yes |
| 510-976 | NORTH COUNTY COMMUNICATION CORPORATION - CA | 2011-06-08 | no | yes |
| 510-977 | FRACTEL, LLC | 2019-03-19 | yes | yes |
| 510-981 | AT&T PACIFIC BELL | – | yes | yes |
| 510-982 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 510-984 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 510-989 | INTEGRATED PATH COMMUNICATIONS, LLC - CA | – | yes | yes |
| 510-990 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 510-993 | T-Mobile T-MOBILE USA, INC. | 2016-06-10 | 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 | 34 | 48.6% |
| T-MOBILE USA, INC. | T-Mobile | 7 | 10% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 4 | 5.7% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 3 | 4.3% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 3 | 4.3% |
| NORTH COUNTY COMMUNICATION CORPORATION - CA | – | 2 | 2.9% |
| METROPCS, INC. | T-Mobile | 2 | 2.9% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 2 | 2.9% |
| ONVOY, LLC - CA | Onvoy | 2 | 2.9% |
| PAETEC ITEL, LLC | Windstream | 1 | 1.4% |
| SONIC TELECOM, LLC - CA | – | 1 | 1.4% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 1 | 1.4% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 1 | 1.4% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 1.4% |
| COMCAST PHONE OF CALIFORNIA, LLC | Comcast | 1 | 1.4% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 1.4% |
| AT&T - LOCAL | AT&T | 1 | 1.4% |
| FRACTEL, LLC | – | 1 | 1.4% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 1 | 1.4% |
| INTEGRATED PATH COMMUNICATIONS, LLC - CA | – | 1 | 1.4% |
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 OKLD BKLY in area code 510?
70 blocks: 204, 225, 229, 277, 280, 292, 295, 345, 356, 365, 416, 423 and 58 more, all listed in the table above.
Which carriers have numbers in OKLD BKLY?
PACIFIC BELL (34 blocks), T-MOBILE USA, INC. (7 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (4 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (3 blocks), NORTH COUNTY COMMUNICATION CORPORATION - 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 OKLD BKLY 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.