CHOWCHILLA prefixes in area code 559
NANPA records 9 assigned NXX blocks to rate center CHOWCHILLA in area code 559, 1.1% 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. 7 holders hold those blocks, the largest being ONVOY, LLC - CA (3), BANDWIDTH.COM CLEC, LLC - CA (1), NEW CINGULAR WIRELESS PCS, LLC (1). The earliest assignment on record here is 2015-07-09 and the most recent 2025-12-22. 8 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 559-201 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | – | yes | yes |
| 559-223 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | yes | yes |
| 559-533 | Onvoy ONVOY, LLC - CA | – | no | yes |
| 559-559 | Onvoy ONVOY, LLC - CA | 2025-12-22 | yes | yes |
| 559-663 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 559-665 | AT&T PACIFIC BELL | – | yes | yes |
| 559-715 | TON80 COMMUNICATIONS, LLC | – | yes | yes |
| 559-775 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | 2015-07-09 | yes | yes |
| 559-812 | Dish BOOST SUBSCRIBERCO L.L.C. | 2022-01-18 | 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 |
|---|---|---|---|
| ONVOY, LLC - CA | Onvoy | 3 | 33.3% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 1 | 11.1% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 1 | 11.1% |
| PACIFIC BELL | AT&T | 1 | 11.1% |
| TON80 COMMUNICATIONS, LLC | – | 1 | 11.1% |
| COMCAST PHONE OF CALIFORNIA, LLC | Comcast | 1 | 11.1% |
| BOOST SUBSCRIBERCO L.L.C. | Dish | 1 | 11.1% |
Frequently asked
Which prefixes belong to CHOWCHILLA in area code 559?
9 blocks: 201, 223, 533, 559, 663, 665, 715, 775, 812. The table above gives the holder of each.
Which carriers have numbers in CHOWCHILLA?
ONVOY, LLC - CA (3 blocks), BANDWIDTH.COM CLEC, LLC - CA (1 block), NEW CINGULAR WIRELESS PCS, LLC (1 block), PACIFIC BELL (1 block), TON80 COMMUNICATIONS, LLC (1 block), COMCAST PHONE OF CALIFORNIA, 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 CHOWCHILLA 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.