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

RIDGECREST prefixes in area code 760

NANPA records 16 assigned NXX blocks to rate center RIDGECREST in area code 760, 2.0% 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 FRONTIER CALIFORNIA INC. (7), UTILITY TELECOM GROUP, LLC - CA (2), NEW CINGULAR WIRELESS PCS, LLC (2). The earliest assignment on record here is 2001-05-09 and the most recent 2011-12-27. 13 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 442 – overlay codes cover the same geography, so a rate center is served by all of them.

16 assigned blocks – 2% of 760
7 holders of record
13 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
760-301 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
760-371 Frontier FRONTIER CALIFORNIA INC. – yes yes
760-375 Frontier FRONTIER CALIFORNIA INC. – no yes
760-382 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – no yes
760-384 Frontier FRONTIER CALIFORNIA INC. – yes yes
760-428 Frontier FRONTIER CALIFORNIA INC. 2009-10-27 yes yes
760-446 Frontier FRONTIER CALIFORNIA INC. – yes yes
760-461 UTILITY TELECOM GROUP, LLC - CA – yes yes
760-463 MCC TELEPHONY OF THE WEST, LLC - CA 2011-12-27 yes yes
760-495 UTILITY TELECOM GROUP, LLC - CA – yes yes
760-499 Frontier FRONTIER CALIFORNIA INC. – yes yes
760-608 AT&T NEW CINGULAR WIRELESS PCS, LLC 2001-05-09 yes yes
760-677 T-Mobile T-MOBILE USA, INC. 2002-04-15 yes yes
760-793 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
760-939 Frontier FRONTIER CALIFORNIA INC. – no yes
760-977 T-Mobile T-MOBILE USA, INC. 2002-08-01 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
FRONTIER CALIFORNIA INC. Frontier 7 43.8%
UTILITY TELECOM GROUP, LLC - CA – 2 12.5%
NEW CINGULAR WIRELESS PCS, LLC AT&T 2 12.5%
T-MOBILE USA, INC. T-Mobile 2 12.5%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 1 6.2%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA Verizon 1 6.2%
MCC TELEPHONY OF THE WEST, LLC - CA – 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 RIDGECREST in area code 760?

16 blocks: 301, 371, 375, 382, 384, 428, 446, 461, 463, 495, 499, 608 and 4 more, all listed in the table above.

Which carriers have numbers in RIDGECREST?

FRONTIER CALIFORNIA INC. (7 blocks), UTILITY TELECOM GROUP, LLC - CA (2 blocks), NEW CINGULAR WIRELESS PCS, LLC (2 blocks), T-MOBILE USA, INC. (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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 RIDGECREST 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 760

All 785 prefixes in 760