CHALLENGE prefixes in area code 530
NANPA records 4 assigned NXX blocks to rate center CHALLENGE in area code 530, 0.5% of the 782 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. 4 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - CA (1), PACIFIC BELL (1), BANDWIDTH.COM CLEC, LLC - CA (1). The earliest assignment on record here is 2022-06-29 and the most recent 2022-06-29. 4 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 |
|---|---|---|---|---|
| 530-236 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 530-675 | AT&T PACIFIC BELL | – | yes | yes |
| 530-705 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2022-06-29 | yes | yes |
| 530-772 | Onvoy ONVOY, 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 |
|---|---|---|---|
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 1 | 25% |
| PACIFIC BELL | AT&T | 1 | 25% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 1 | 25% |
| ONVOY, LLC - CA | Onvoy | 1 | 25% |
Frequently asked
Which prefixes belong to CHALLENGE in area code 530?
4 blocks: 236, 675, 705, 772. The table above gives the holder of each.
Which carriers have numbers in CHALLENGE?
LEVEL 3 COMMUNICATIONS, LLC - CA (1 block), PACIFIC BELL (1 block), BANDWIDTH.COM CLEC, LLC - CA (1 block), ONVOY, 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 CHALLENGE 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.