RICHMOND prefixes in area code 510
NANPA records 53 assigned NXX blocks to rate center RICHMOND in area code 510, 6.8% 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. 15 holders hold those blocks, the largest being PACIFIC BELL (15), BANDWIDTH.COM CLEC, LLC - CA (5), T-MOBILE USA, INC. (5). The earliest assignment on record here is 2001-03-22 and the most recent 2024-07-23. 36 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 207, 320, 341, 413 – 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 |
|---|---|---|---|---|
| 510-210 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2013-01-04 | yes | yes |
| 510-215 | AT&T PACIFIC BELL | – | no | yes |
| 510-221 | T-Mobile METROPCS, INC. | 2007-02-08 | yes | yes |
| 510-230 | T-Mobile T-MOBILE USA, INC. | 2007-02-15 | yes | yes |
| 510-231 | AT&T PACIFIC BELL | – | no | yes |
| 510-232 | AT&T PACIFIC BELL | – | no | yes |
| 510-233 | AT&T PACIFIC BELL | – | no | yes |
| 510-234 | AT&T PACIFIC BELL | – | no | yes |
| 510-235 | AT&T PACIFIC BELL | – | no | yes |
| 510-236 | AT&T PACIFIC BELL | – | no | yes |
| 510-237 | AT&T PACIFIC BELL | – | no | yes |
| 510-242 | AT&T PACIFIC BELL | – | no | yes |
| 510-253 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 510-255 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2011-04-28 | yes | yes |
| 510-260 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | – | yes | yes |
| 510-307 | AT&T PACIFIC BELL | – | yes | yes |
| 510-323 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 510-334 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 510-349 | American Messaging AMERICAN MESSAGING SERVICES, LLC | – | no | yes |
| 510-367 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 510-369 | Onvoy ONVOY, LLC - CA | 2016-02-04 | yes | yes |
| 510-374 | AT&T PACIFIC BELL | – | yes | yes |
| 510-375 | T-Mobile T-MOBILE USA, INC. | 2001-12-26 | yes | yes |
| 510-412 | AT&T PACIFIC BELL | – | no | yes |
| 510-426 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2014-03-27 | yes | yes |
| 510-439 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 510-447 | T-Mobile METROPCS, INC. | 2011-12-09 | yes | yes |
| 510-478 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 510-609 | T-Mobile T-MOBILE USA, INC. | 2018-04-11 | yes | yes |
| 510-619 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 510-620 | AT&T PACIFIC BELL | – | yes | yes |
| 510-621 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 510-660 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2015-08-11 | yes | yes |
| 510-672 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2002-09-19 | yes | yes |
| 510-680 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2013-06-03 | yes | yes |
| 510-685 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | no | yes |
| 510-730 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2010-02-22 | yes | yes |
| 510-734 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 510-776 | T-Mobile METROPCS, INC. | 2001-09-21 | no | yes |
| 510-778 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | 2006-09-21 | yes | yes |
| 510-806 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2016-06-09 | yes | yes |
| 510-829 | T-Mobile METROPCS, INC. | 2014-08-18 | yes | yes |
| 510-831 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2020-12-11 | yes | yes |
| 510-837 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 510-860 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 510-890 | T-Mobile T-MOBILE USA, INC. | 2016-06-14 | yes | yes |
| 510-932 | T-Mobile T-MOBILE USA, INC. | 2001-03-22 | yes | yes |
| 510-942 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 2014-12-01 | yes | yes |
| 510-965 | AT&T PACIFIC BELL | – | yes | yes |
| 510-966 | Charter ONVOY SPECTRUM, LLC | 2024-07-23 | yes | yes |
| 510-970 | AT&T PACIFIC BELL | – | no | yes |
| 510-974 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2014-09-19 | yes | yes |
| 510-994 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2019-07-26 | 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 | 15 | 28.3% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 5 | 9.4% |
| T-MOBILE USA, INC. | T-Mobile | 5 | 9.4% |
| METROPCS, INC. | T-Mobile | 4 | 7.5% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 4 | 7.5% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 4 | 7.5% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 3 | 5.7% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 3 | 5.7% |
| COMCAST PHONE OF CALIFORNIA, LLC | Comcast | 2 | 3.8% |
| ONVOY, LLC - CA | Onvoy | 2 | 3.8% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 2 | 3.8% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 1.9% |
| AMERICAN MESSAGING SERVICES, LLC | American Messaging | 1 | 1.9% |
| CENTURYLINK COMMUNICATIONS, LLC | Lumen | 1 | 1.9% |
| ONVOY SPECTRUM, LLC | Charter | 1 | 1.9% |
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 RICHMOND in area code 510?
53 blocks: 210, 215, 221, 230, 231, 232, 233, 234, 235, 236, 237, 242 and 41 more, all listed in the table above.
Which carriers have numbers in RICHMOND?
PACIFIC BELL (15 blocks), BANDWIDTH.COM CLEC, LLC - CA (5 blocks), T-MOBILE USA, INC. (5 blocks), METROPCS, INC. (4 blocks), NEW CINGULAR WIRELESS PCS, LLC (4 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (4 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is RICHMOND 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.