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

MOJAVE prefixes in area code 661

NANPA records 9 assigned NXX blocks to rate center MOJAVE in area code 661, 1.3% of the 674 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 T-MOBILE USA, INC. (2), LEVEL 3 COMMUNICATIONS, LLC - CA (2), LEVEL 3 TELECOM OF CALIFORNIA, LP - CA (1). The earliest assignment on record here is 2002-01-16 and the most recent 2022-10-10. 8 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

9 assigned blocks – 1.3% of 661
7 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
661-221 T-Mobile T-MOBILE USA, INC. 2002-01-16 yes yes
661-232 T-Mobile T-MOBILE USA, INC. – yes yes
661-271 Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA – yes yes
661-356 UTILITY TELECOM GROUP, LLC - CA – yes yes
661-584 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
661-597 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2022-10-10 yes yes
661-749 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
661-754 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
661-824 AT&T PACIFIC BELL – 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

HolderBrandBlocksShare here
T-MOBILE USA, INC. T-Mobile 2 22.2%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 2 22.2%
LEVEL 3 TELECOM OF CALIFORNIA, LP - CA Lumen 1 11.1%
UTILITY TELECOM GROUP, LLC - CA – 1 11.1%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA Verizon 1 11.1%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 11.1%
PACIFIC BELL AT&T 1 11.1%

Frequently asked

Which prefixes belong to MOJAVE in area code 661?

9 blocks: 221, 232, 271, 356, 584, 597, 749, 754, 824. The table above gives the holder of each.

Which carriers have numbers in MOJAVE?

T-MOBILE USA, INC. (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (2 blocks), LEVEL 3 TELECOM OF CALIFORNIA, LP - CA (1 block), UTILITY TELECOM GROUP, LLC - CA (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (1 block), NEW CINGULAR WIRELESS PCS, 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 MOJAVE 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 661

All 674 prefixes in 661