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

KINGMAN prefixes in area code 928

NANPA records 25 assigned NXX blocks to rate center KINGMAN in area code 928, 3.9% of the 637 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. 10 holders hold those blocks, the largest being CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL (7), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ (5), ONVOY, LLC - AZ (3). The earliest assignment on record here is 2001-03-12 and the most recent 2023-12-22. 17 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 codes 207, 620, 765 – overlay codes cover the same geography, so a rate center is served by all of them.

25 assigned blocks – 3.9% of 928
10 holders of record
17 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
928-263 Frontier CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL 2007-05-03 yes yes
928-279 T-Mobile T-MOBILE USA, INC. 2001-03-12 yes yes
928-293 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 2013-06-14 yes yes
928-303 T-Mobile METROPCS, INC. 2001-05-31 yes yes
928-352 Onvoy ONVOY, LLC - AZ 2019-05-28 yes yes
928-377 AT&T NEW CINGULAR WIRELESS PCS, LLC 2004-08-19 yes yes
928-385 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 2020-07-14 yes yes
928-391 Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ 2020-07-28 yes yes
928-418 T-Mobile T-MOBILE USA, INC. 2021-08-24 yes yes
928-529 CSC VOICE, LLC 2014-02-06 yes yes
928-530 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
928-565 Frontier CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL – yes yes
928-628 Onvoy ONVOY, LLC - AZ 2020-07-16 yes yes
928-681 Frontier CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL – yes yes
928-692 Frontier CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL – no yes
928-715 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ – no yes
928-716 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ – no yes
928-718 Frontier CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL – no yes
928-727 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ – no yes
928-753 Frontier CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL – no yes
928-757 Frontier CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL – no yes
928-867 COMMIO, LLC 2022-05-16 yes yes
928-880 Charter ONVOY SPECTRUM, LLC 2023-12-22 yes yes
928-897 AT&T NEW CINGULAR WIRELESS PCS, LLC 2001-11-19 yes yes
928-898 Onvoy ONVOY, LLC - AZ 2021-03-11 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
CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL Frontier 7 28%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ Verizon 5 20%
ONVOY, LLC - AZ Onvoy 3 12%
NEW CINGULAR WIRELESS PCS, LLC AT&T 3 12%
T-MOBILE USA, INC. T-Mobile 2 8%
METROPCS, INC. T-Mobile 1 4%
LEVEL 3 COMMUNICATIONS, LLC - AZ Lumen 1 4%
CSC VOICE, LLC – 1 4%
COMMIO, LLC – 1 4%
ONVOY SPECTRUM, LLC Charter 1 4%

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 KINGMAN in area code 928?

25 blocks: 263, 279, 293, 303, 352, 377, 385, 391, 418, 529, 530, 565 and 13 more, all listed in the table above.

Which carriers have numbers in KINGMAN?

CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL (7 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ (5 blocks), ONVOY, LLC - AZ (3 blocks), NEW CINGULAR WIRELESS PCS, LLC (3 blocks), T-MOBILE USA, INC. (2 blocks), METROPCS, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is KINGMAN 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 928

All 637 prefixes in 928