HESPERIA prefixes in area code 231
NANPA records 3 assigned NXX blocks to rate center HESPERIA in area code 231, 0.5% of the 572 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. 3 holders hold those blocks, the largest being ONVOY SPECTRUM, LLC (1), NEW CINGULAR WIRELESS PCS, LLC - IL (1), FRONTIER NORTH, INC. - MI (1). The earliest assignment on record here is 2005-01-19 and the most recent 2020-10-26. 2 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 |
|---|---|---|---|---|
| 231-278 | Charter ONVOY SPECTRUM, LLC | 2020-10-26 | yes | yes |
| 231-450 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2005-01-19 | yes | yes |
| 231-854 | Frontier FRONTIER NORTH, INC. - MI | – | no | 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 SPECTRUM, LLC | Charter | 1 | 33.3% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 1 | 33.3% |
| FRONTIER NORTH, INC. - MI | Frontier | 1 | 33.3% |
Frequently asked
Which prefixes belong to HESPERIA in area code 231?
3 blocks: 278, 450, 854. The table above gives the holder of each.
Which carriers have numbers in HESPERIA?
ONVOY SPECTRUM, LLC (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), FRONTIER NORTH, INC. - MI (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is HESPERIA 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.