GILROY prefixes in area code 408
NANPA records 16 assigned NXX blocks to rate center GILROY in area code 408, 2.0% of the 787 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. (4), ONVOY, LLC - CA (2), BANDWIDTH.COM CLEC, LLC - CA (2). The earliest assignment on record here is 2007-10-10 and the most recent 2023-09-19. 11 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 669 – 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 |
|---|---|---|---|---|
| 408-337 | Charter CHARTER IP ENABLED SERVICES, LLC | 2009-06-18 | yes | yes |
| 408-413 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 408-427 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 408-430 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2010-09-30 | yes | yes |
| 408-443 | Onvoy ONVOY, LLC - CA | 2023-09-19 | yes | yes |
| 408-632 | NORTH COUNTY COMMUNICATION CORPORATION - CA | – | no | yes |
| 408-665 | T-Mobile METROPCS, INC. | 2007-10-10 | yes | yes |
| 408-713 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2011-04-15 | yes | yes |
| 408-767 | T-Mobile METROPCS, INC. | 2011-08-01 | yes | yes |
| 408-840 | AT&T PACIFIC BELL (COMPETITIVE) | – | yes | yes |
| 408-842 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 408-843 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 408-846 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 408-847 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 408-848 | Frontier FRONTIER CALIFORNIA INC. | – | no | yes |
| 408-852 | Lumen LEVEL 3 COMMUNICATIONS, LLC - 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 | 4 | 25% |
| ONVOY, LLC - CA | Onvoy | 2 | 12.5% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 2 | 12.5% |
| METROPCS, INC. | T-Mobile | 2 | 12.5% |
| CHARTER IP ENABLED SERVICES, LLC | Charter | 1 | 6.2% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 6.2% |
| NORTH COUNTY COMMUNICATION CORPORATION - CA | – | 1 | 6.2% |
| PACIFIC BELL (COMPETITIVE) | AT&T | 1 | 6.2% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 6.2% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 1 | 6.2% |
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 GILROY in area code 408?
16 blocks: 337, 413, 427, 430, 443, 632, 665, 713, 767, 840, 842, 843 and 4 more, all listed in the table above.
Which carriers have numbers in GILROY?
FRONTIER CALIFORNIA INC. (4 blocks), ONVOY, LLC - CA (2 blocks), BANDWIDTH.COM CLEC, LLC - CA (2 blocks), METROPCS, INC. (2 blocks), CHARTER IP ENABLED SERVICES, LLC (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is GILROY 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.