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

GILLETTE prefixes in area code 307

NANPA records 21 assigned NXX blocks to rate center GILLETTE in area code 307, 4.2% of the 499 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 NEW CINGULAR WIRELESS PCS, LLC (5), QWEST CORPORATION (5), BANDWIDTH.COM CLEC, LLC - WY (3). The earliest assignment on record here is 2002-12-27 and the most recent 2024-02-05. 9 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

21 assigned blocks – 4.2% of 307
8 holders of record
9 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
307-228 Bandwidth BANDWIDTH.COM CLEC, LLC - WY 2014-05-23 yes yes
307-257 Lumen LEVEL 3 COMMUNICATIONS, LLC - WY 2004-05-19 yes yes
307-299 AT&T NEW CINGULAR WIRELESS PCS, LLC 2003-10-21 no yes
307-363 Bandwidth BANDWIDTH.COM CLEC, LLC - WY 2010-08-30 yes yes
307-387 Bandwidth BANDWIDTH.COM CLEC, LLC - WY 2021-10-01 yes yes
307-434 Onvoy ONVOY, LLC - WY 2024-02-05 yes yes
307-487 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 2018-10-09 yes yes
307-567 UNION TELEPHONE COMPANY – no yes
307-622 AT&T NEW CINGULAR WIRELESS PCS, LLC 2010-11-24 yes yes
307-660 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
307-670 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY – yes yes
307-680 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
307-681 ADVANCED COMMUNICATIONS TECHNOLOGY, INC. - WY 2010-04-16 no yes
307-682 Lumen QWEST CORPORATION – no yes
307-685 Lumen QWEST CORPORATION – no yes
307-686 Lumen QWEST CORPORATION – no yes
307-687 Lumen QWEST CORPORATION – no yes
307-688 Lumen QWEST CORPORATION 2004-05-24 no yes
307-689 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY – no yes
307-696 AT&T NEW CINGULAR WIRELESS PCS, LLC 2008-09-22 yes yes
307-704 UNION TELEPHONE COMPANY 2002-12-27 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
NEW CINGULAR WIRELESS PCS, LLC AT&T 5 23.8%
QWEST CORPORATION Lumen 5 23.8%
BANDWIDTH.COM CLEC, LLC - WY Bandwidth 3 14.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY Verizon 3 14.3%
UNION TELEPHONE COMPANY – 2 9.5%
LEVEL 3 COMMUNICATIONS, LLC - WY Lumen 1 4.8%
ONVOY, LLC - WY Onvoy 1 4.8%
ADVANCED COMMUNICATIONS TECHNOLOGY, INC. - WY – 1 4.8%

Frequently asked

Which prefixes belong to GILLETTE in area code 307?

21 blocks: 228, 257, 299, 363, 387, 434, 487, 567, 622, 660, 670, 680 and 9 more, all listed in the table above.

Which carriers have numbers in GILLETTE?

NEW CINGULAR WIRELESS PCS, LLC (5 blocks), QWEST CORPORATION (5 blocks), BANDWIDTH.COM CLEC, LLC - WY (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY (3 blocks), UNION TELEPHONE COMPANY (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - WY (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is GILLETTE 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 307

All 499 prefixes in 307