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

TAFT prefixes in area code 661

NANPA records 11 assigned NXX blocks to rate center TAFT in area code 661, 1.6% 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 FRONTIER CALIFORNIA INC. (4), T-MOBILE USA, INC. (2), UTILITY TELECOM GROUP, LLC - CA (1). The earliest assignment on record here is 2002-01-16 and the most recent 2023-09-21. 11 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 361 – overlay codes cover the same geography, so a rate center is served by all of them.

11 assigned blocks – 1.6% of 661
7 holders of record
11 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
661-293 T-Mobile T-MOBILE USA, INC. 2002-01-16 yes yes
661-358 UTILITY TELECOM GROUP, LLC - CA – yes yes
661-500 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2023-09-21 yes yes
661-577 T-Mobile METROPCS, INC. – yes yes
661-623 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
661-745 BHN IP ENABLED SERVICES, LLC – yes yes
661-763 Frontier FRONTIER CALIFORNIA INC. – yes yes
661-765 Frontier FRONTIER CALIFORNIA INC. – yes yes
661-768 Frontier FRONTIER CALIFORNIA INC. – yes yes
661-769 Frontier FRONTIER CALIFORNIA INC. – yes yes
661-770 T-Mobile T-MOBILE USA, INC. – 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 4 36.4%
T-MOBILE USA, INC. T-Mobile 2 18.2%
UTILITY TELECOM GROUP, LLC - CA – 1 9.1%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA Verizon 1 9.1%
METROPCS, INC. T-Mobile 1 9.1%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 9.1%
BHN IP ENABLED SERVICES, LLC – 1 9.1%

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 TAFT in area code 661?

11 blocks: 293, 358, 500, 577, 623, 745, 763, 765, 768, 769, 770. The table above gives the holder of each.

Which carriers have numbers in TAFT?

FRONTIER CALIFORNIA INC. (4 blocks), T-MOBILE USA, INC. (2 blocks), UTILITY TELECOM GROUP, LLC - CA (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (1 block), METROPCS, INC. (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 TAFT 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