WESTMINSTR prefixes in area code 714
NANPA records 45 assigned NXX blocks to rate center WESTMINSTR in area code 714, 5.7% 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. 10 holders hold those blocks, the largest being FRONTIER CALIFORNIA INC. (17), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (10), T-MOBILE USA, INC. (9). The earliest assignment on record here is 2001-03-22 and the most recent 2025-10-09. 23 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 351, 410, 419, 443 – 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 |
|---|---|---|---|---|
| 714-217 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2024-03-28 | yes | yes |
| 714-222 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | no | yes |
| 714-230 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 714-248 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2007-06-22 | yes | yes |
| 714-334 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | no | yes |
| 714-372 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-373 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-379 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-413 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2025-10-09 | yes | yes |
| 714-487 | T-Mobile T-MOBILE USA, INC. | 2007-02-24 | yes | yes |
| 714-514 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | no | yes |
| 714-548 | T-Mobile T-MOBILE USA, INC. | 2006-09-21 | yes | yes |
| 714-614 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | no | yes |
| 714-615 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | no | yes |
| 714-622 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 714-650 | T-Mobile METROPCS NETWORKS, LLC | 2007-03-23 | yes | yes |
| 714-653 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 714-657 | T-Mobile T-MOBILE USA, INC. | 2001-04-25 | yes | yes |
| 714-677 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 714-702 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2005-10-18 | yes | yes |
| 714-722 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2006-09-13 | yes | yes |
| 714-725 | T-Mobile T-MOBILE USA, INC. | 2006-03-28 | yes | yes |
| 714-766 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 714-793 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | yes | yes |
| 714-799 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-837 | T-Mobile T-MOBILE USA, INC. | 2005-09-08 | yes | yes |
| 714-857 | SHELCOMM | 2001-03-22 | no | yes |
| 714-889 | AT&T PACIFIC BELL (COMPETITIVE) | – | yes | yes |
| 714-890 | Frontier FRONTIER CALIFORNIA INC. | – | yes | yes |
| 714-891 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-892 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-893 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-894 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-895 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-896 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-897 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-898 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-899 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-901 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-902 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 714-903 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-908 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 714-933 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 714-934 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 714-943 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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 |
|---|---|---|---|
| FRONTIER CALIFORNIA INC. | Frontier | 17 | 37.8% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 10 | 22.2% |
| T-MOBILE USA, INC. | T-Mobile | 9 | 20% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 2 | 4.4% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 2 | 4.4% |
| METROPCS NETWORKS, LLC | T-Mobile | 1 | 2.2% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 1 | 2.2% |
| SHELCOMM | – | 1 | 2.2% |
| PACIFIC BELL (COMPETITIVE) | AT&T | 1 | 2.2% |
| ONVOY, LLC - CA | Onvoy | 1 | 2.2% |
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 WESTMINSTR in area code 714?
45 blocks: 217, 222, 230, 248, 334, 372, 373, 379, 413, 487, 514, 548 and 33 more, all listed in the table above.
Which carriers have numbers in WESTMINSTR?
FRONTIER CALIFORNIA INC. (17 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (10 blocks), T-MOBILE USA, INC. (9 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (2 blocks), METROPCS NETWORKS, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is WESTMINSTR 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.