BULLHEADCY prefixes in area code 928
NANPA records 19 assigned NXX blocks to rate center BULLHEADCY in area code 928, 3.0% 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. 8 holders hold those blocks, the largest being T-MOBILE USA, INC. (5), NEW CINGULAR WIRELESS PCS, LLC (3), CSC VOICE, LLC (3). The earliest assignment on record here is 2001-08-15 and the most recent 2025-11-06. 15 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 928-201 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 928-219 | CSC VOICE, LLC | – | yes | yes |
| 928-234 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-11-19 | yes | yes |
| 928-278 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ | 2012-12-19 | yes | yes |
| 928-296 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2017-03-16 | yes | yes |
| 928-299 | CSC VOICE, LLC | 2014-02-06 | yes | yes |
| 928-435 | T-Mobile T-MOBILE USA, INC. | 2022-08-12 | yes | yes |
| 928-444 | CSC VOICE, LLC | – | yes | yes |
| 928-450 | T-Mobile T-MOBILE USA, INC. | 2021-10-01 | yes | yes |
| 928-514 | T-Mobile T-MOBILE USA, INC. | 2010-07-23 | yes | yes |
| 928-538 | Onvoy ONVOY, LLC - AZ | 2020-10-22 | yes | yes |
| 928-542 | T-Mobile T-MOBILE USA, INC. | 2001-08-15 | yes | yes |
| 928-546 | TON80 COMMUNICATIONS, LLC | 2022-01-10 | yes | yes |
| 928-553 | T-Mobile T-MOBILE USA, INC. | 2025-11-06 | yes | yes |
| 928-605 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2015-03-13 | yes | yes |
| 928-610 | Onvoy ONVOY, LLC - AZ | 2021-02-28 | yes | yes |
| 928-704 | Frontier CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL | – | no | yes |
| 928-758 | Frontier CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL | – | no | yes |
| 928-763 | Frontier CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL | – | 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
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| T-MOBILE USA, INC. | T-Mobile | 5 | 26.3% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 3 | 15.8% |
| CSC VOICE, LLC | – | 3 | 15.8% |
| CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL | Frontier | 3 | 15.8% |
| ONVOY, LLC - AZ | Onvoy | 2 | 10.5% |
| LEVEL 3 COMMUNICATIONS, LLC - AZ | Lumen | 1 | 5.3% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | Verizon | 1 | 5.3% |
| TON80 COMMUNICATIONS, LLC | – | 1 | 5.3% |
Frequently asked
Which prefixes belong to BULLHEADCY in area code 928?
19 blocks: 201, 219, 234, 278, 296, 299, 435, 444, 450, 514, 538, 542 and 7 more, all listed in the table above.
Which carriers have numbers in BULLHEADCY?
T-MOBILE USA, INC. (5 blocks), NEW CINGULAR WIRELESS PCS, LLC (3 blocks), CSC VOICE, LLC (3 blocks), CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL (3 blocks), ONVOY, LLC - AZ (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - AZ (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is BULLHEADCY 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.