NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

PALMDESERT prefixes in area code 442

NANPA records 12 assigned NXX blocks to rate center PALMDESERT in area code 442, 3.4% of the 356 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. 8 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC (3), ONVOY, LLC - CA (2), T-MOBILE USA, INC. (2). The earliest assignment on record here is 2015-03-04 and the most recent 2024-08-29. 12 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 760 – overlay codes cover the same geography, so a rate center is served by all of them.

12 assigned blocks – 3.4% of 442
8 holders of record
12 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
442-227 HD CARRIER LLC – yes yes
442-274 AT&T NEW CINGULAR WIRELESS PCS, LLC 2015-03-04 yes yes
442-282 AT&T NEW CINGULAR WIRELESS PCS, LLC 2015-12-03 yes yes
442-305 Onvoy ONVOY, LLC - CA 2019-03-07 yes yes
442-334 Telnyx TELNYX LLC 2017-05-10 yes yes
442-371 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 2022-05-26 yes yes
442-397 Comcast COMCAST PHONE OF CALIFORNIA, LLC 2023-04-12 yes yes
442-418 AT&T NEW CINGULAR WIRELESS PCS, LLC 2023-08-28 yes yes
442-470 T-Mobile T-MOBILE USA, INC. 2024-08-29 yes yes
442-666 Onvoy ONVOY, LLC - CA – yes yes
442-677 FRACTEL, LLC 2020-05-29 yes yes
442-998 T-Mobile T-MOBILE USA, INC. 2024-03-27 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

HolderBrandBlocksShare here
NEW CINGULAR WIRELESS PCS, LLC AT&T 3 25%
ONVOY, LLC - CA Onvoy 2 16.7%
T-MOBILE USA, INC. T-Mobile 2 16.7%
HD CARRIER LLC – 1 8.3%
TELNYX LLC Telnyx 1 8.3%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 1 8.3%
COMCAST PHONE OF CALIFORNIA, LLC Comcast 1 8.3%
FRACTEL, LLC – 1 8.3%

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 PALMDESERT in area code 442?

12 blocks: 227, 274, 282, 305, 334, 371, 397, 418, 470, 666, 677, 998. The table above gives the holder of each.

Which carriers have numbers in PALMDESERT?

NEW CINGULAR WIRELESS PCS, LLC (3 blocks), ONVOY, LLC - CA (2 blocks), T-MOBILE USA, INC. (2 blocks), HD CARRIER LLC (1 block), TELNYX LLC (1 block), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is PALMDESERT 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.

Other rate centers in 442

All 356 prefixes in 442