CLAREMONT prefixes in area code 909
NANPA records 50 assigned NXX blocks to rate center CLAREMONT in area code 909, 6.4% of the 786 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 FRONTIER CALIFORNIA INC. (20), T-MOBILE USA, INC. (7), ONVOY, LLC - CA (3). The earliest assignment on record here is 2001-11-29 and the most recent 2024-01-29. 32 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 507, 603, 605, 618 – 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 |
|---|---|---|---|---|
| 909-207 | Spok SPOK, INC. | – | no | yes |
| 909-267 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 909-288 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 909-293 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2010-11-19 | yes | yes |
| 909-305 | Frontier FRONTIER CALIFORNIA INC. | – | yes | yes |
| 909-344 | T-Mobile T-MOBILE USA, INC. | 2012-10-02 | yes | yes |
| 909-392 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-394 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-398 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-399 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-407 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 2017-06-16 | yes | yes |
| 909-445 | Frontier FRONTIER CALIFORNIA INC. | – | yes | yes |
| 909-447 | Frontier FRONTIER CALIFORNIA INC. | – | yes | yes |
| 909-448 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-450 | AT&T PACIFIC BELL (COMPETITIVE) | – | yes | yes |
| 909-451 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 909-480 | Frontier FRONTIER CALIFORNIA INC. | – | yes | yes |
| 909-482 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-506 | T-Mobile T-MOBILE USA, INC. | 2016-07-25 | yes | yes |
| 909-523 | Spok SPOK, INC. | – | no | yes |
| 909-526 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2024-01-29 | yes | yes |
| 909-541 | T-Mobile T-MOBILE USA, INC. | 2014-08-18 | yes | yes |
| 909-542 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 909-568 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 909-575 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 909-592 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-593 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-596 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-599 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-603 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-607 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | no | yes |
| 909-621 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-624 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-625 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-626 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 909-656 | T-Mobile T-MOBILE USA, INC. | 2014-12-23 | yes | yes |
| 909-667 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 909-670 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 909-675 | Onvoy ONVOY, LLC - CA | 2014-12-09 | yes | yes |
| 909-741 | T-Mobile T-MOBILE USA, INC. | 2015-09-09 | yes | yes |
| 909-753 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 909-788 | FRACTEL, LLC | 2019-05-13 | yes | yes |
| 909-830 | Vonage VONAGE AMERICA LLC | 2020-06-18 | yes | yes |
| 909-833 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2010-02-22 | yes | yes |
| 909-901 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2020-10-16 | yes | yes |
| 909-905 | T-Mobile T-MOBILE USA, INC. | 2020-10-19 | yes | yes |
| 909-929 | Charter TWC IP ENABLED SERVICES, LLC | 2013-03-22 | yes | yes |
| 909-962 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 909-964 | T-Mobile T-MOBILE USA, INC. | 2001-11-29 | yes | yes |
| 909-971 | Frontier FRONTIER CALIFORNIA INC. | – | 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 |
|---|---|---|---|
| FRONTIER CALIFORNIA INC. | Frontier | 20 | 40% |
| T-MOBILE USA, INC. | T-Mobile | 7 | 14% |
| ONVOY, LLC - CA | Onvoy | 3 | 6% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 3 | 6% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 3 | 6% |
| SPOK, INC. | Spok | 2 | 4% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 2 | 4% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 2 | 4% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 2 | 4% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 2% |
| PACIFIC BELL (COMPETITIVE) | AT&T | 1 | 2% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 1 | 2% |
| FRACTEL, LLC | – | 1 | 2% |
| VONAGE AMERICA LLC | Vonage | 1 | 2% |
| TWC IP ENABLED SERVICES, LLC | Charter | 1 | 2% |
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 CLAREMONT in area code 909?
50 blocks: 207, 267, 288, 293, 305, 344, 392, 394, 398, 399, 407, 445 and 38 more, all listed in the table above.
Which carriers have numbers in CLAREMONT?
FRONTIER CALIFORNIA INC. (20 blocks), T-MOBILE USA, INC. (7 blocks), ONVOY, LLC - CA (3 blocks), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (3 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (3 blocks), SPOK, INC. (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is CLAREMONT 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.