OKLD TRNID prefixes in area code 510
NANPA records 60 assigned NXX blocks to rate center OKLD TRNID in area code 510, 7.6% 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. 13 holders hold those blocks, the largest being PACIFIC BELL (34), T-MOBILE USA, INC. (7), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (3). The earliest assignment on record here is 2001-04-20 and the most recent 2023-06-28. 39 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 |
|---|---|---|---|---|
| 510-297 | AT&T PACIFIC BELL | – | no | yes |
| 510-343 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 510-346 | AT&T PACIFIC BELL | – | yes | yes |
| 510-347 | AT&T PACIFIC BELL | – | yes | yes |
| 510-351 | AT&T PACIFIC BELL | – | no | yes |
| 510-352 | AT&T PACIFIC BELL | – | no | yes |
| 510-357 | AT&T PACIFIC BELL | – | no | yes |
| 510-382 | AT&T PACIFIC BELL | – | no | yes |
| 510-383 | AT&T PACIFIC BELL | – | yes | yes |
| 510-389 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 2023-06-28 | yes | yes |
| 510-394 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 510-425 | AT&T PACIFIC BELL | – | yes | yes |
| 510-430 | AT&T PACIFIC BELL | – | no | yes |
| 510-454 | AT&T PACIFIC BELL | 2012-11-30 | yes | yes |
| 510-483 | AT&T PACIFIC BELL | – | no | yes |
| 510-544 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 510-553 | AT&T PACIFIC BELL | – | no | yes |
| 510-560 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | 2014-07-14 | yes | yes |
| 510-562 | AT&T PACIFIC BELL | – | no | yes |
| 510-563 | AT&T PACIFIC BELL | – | yes | yes |
| 510-564 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 510-567 | AT&T PACIFIC BELL | – | yes | yes |
| 510-568 | AT&T PACIFIC BELL | – | no | yes |
| 510-569 | AT&T PACIFIC BELL | – | no | yes |
| 510-577 | AT&T PACIFIC BELL | – | no | yes |
| 510-613 | AT&T PACIFIC BELL | – | yes | yes |
| 510-614 | AT&T PACIFIC BELL | – | no | yes |
| 510-615 | AT&T PACIFIC BELL | – | no | yes |
| 510-618 | AT&T PACIFIC BELL | – | yes | yes |
| 510-626 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2016-07-29 | yes | yes |
| 510-632 | AT&T PACIFIC BELL | – | no | yes |
| 510-633 | AT&T PACIFIC BELL | – | no | yes |
| 510-635 | AT&T PACIFIC BELL | – | no | yes |
| 510-636 | AT&T PACIFIC BELL | – | yes | yes |
| 510-638 | AT&T PACIFIC BELL | – | no | yes |
| 510-639 | AT&T PACIFIC BELL | – | no | yes |
| 510-667 | AT&T PACIFIC BELL | – | yes | yes |
| 510-678 | AT&T PACIFIC BELL | – | no | yes |
| 510-686 | AT&T AT&T ENTERPRISES, LLC | – | yes | yes |
| 510-692 | T-Mobile METROPCS, INC. | – | yes | yes |
| 510-707 | T-Mobile T-MOBILE USA, INC. | 2016-04-01 | yes | yes |
| 510-729 | AT&T PACIFIC BELL | – | yes | yes |
| 510-746 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 2001-04-23 | yes | yes |
| 510-753 | T-Mobile T-MOBILE USA, INC. | 2014-11-25 | yes | yes |
| 510-756 | T-Mobile T-MOBILE USA, INC. | 2015-09-09 | yes | yes |
| 510-777 | AT&T PACIFIC BELL | – | yes | yes |
| 510-798 | T-Mobile METROPCS, INC. | – | yes | yes |
| 510-820 | T-Mobile T-MOBILE USA, INC. | 2015-07-10 | yes | yes |
| 510-822 | T-Mobile T-MOBILE USA, INC. | 2016-10-21 | yes | yes |
| 510-850 | T-Mobile T-MOBILE USA, INC. | 2015-04-13 | yes | yes |
| 510-875 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 510-877 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 510-878 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | – | yes | yes |
| 510-895 | AT&T PACIFIC BELL | – | no | yes |
| 510-904 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2001-04-20 | yes | yes |
| 510-916 | T-Mobile T-MOBILE USA, INC. | 2021-03-04 | yes | yes |
| 510-924 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 510-955 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 2018-04-05 | yes | yes |
| 510-957 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 510-969 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - 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 | 34 | 56.7% |
| T-MOBILE USA, INC. | T-Mobile | 7 | 11.7% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 3 | 5% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 2 | 3.3% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 2 | 3.3% |
| COMCAST PHONE OF CALIFORNIA, LLC | Comcast | 2 | 3.3% |
| METROPCS, INC. | T-Mobile | 2 | 3.3% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 2 | 3.3% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 2 | 3.3% |
| ONVOY, LLC - CA | Onvoy | 1 | 1.7% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 1 | 1.7% |
| AT&T ENTERPRISES, LLC | AT&T | 1 | 1.7% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 1.7% |
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 TRNID in area code 510?
60 blocks: 297, 343, 346, 347, 351, 352, 357, 382, 383, 389, 394, 425 and 48 more, all listed in the table above.
Which carriers have numbers in OKLD TRNID?
PACIFIC BELL (34 blocks), T-MOBILE USA, INC. (7 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (3 blocks), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (2 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (2 blocks), COMCAST PHONE OF CALIFORNIA, LLC (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 TRNID 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.