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

CODY prefixes in area code 307

NANPA records 15 assigned NXX blocks to rate center CODY in area code 307, 3.0% 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. 11 holders hold those blocks, the largest being QWEST CORPORATION (3), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY (2), ONVOY, LLC - WY (2). The earliest assignment on record here is 2002-07-16 and the most recent 2024-12-12. 10 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 402, 606 – overlay codes cover the same geography, so a rate center is served by all of them.

15 assigned blocks – 3% of 307
11 holders of record
10 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
307-204 AIRUS, INC. - WY 2018-02-06 yes yes
307-213 Lumen LEVEL 3 COMMUNICATIONS, LLC - WY 2002-07-16 yes yes
307-250 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY – yes yes
307-272 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY – no yes
307-291 COMMIO, LLC 2021-10-28 yes yes
307-296 Onvoy ONVOY, LLC - WY – yes yes
307-302 Bandwidth BANDWIDTH.COM CLEC, LLC - WY 2020-08-17 yes yes
307-419 T-Mobile T-MOBILE USA, INC. 2022-03-24 yes yes
307-474 Onvoy ONVOY, LLC - WY 2024-12-12 yes yes
307-527 Lumen QWEST CORPORATION – yes yes
307-578 Lumen QWEST CORPORATION – yes yes
307-586 TRI TEL, INC. 2005-04-01 no yes
307-587 Lumen QWEST CORPORATION – no yes
307-712 UNION TELEPHONE COMPANY 2002-12-27 no yes
307-899 AT&T NEW CINGULAR WIRELESS PCS, LLC – 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
QWEST CORPORATION Lumen 3 20%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY Verizon 2 13.3%
ONVOY, LLC - WY Onvoy 2 13.3%
AIRUS, INC. - WY – 1 6.7%
LEVEL 3 COMMUNICATIONS, LLC - WY Lumen 1 6.7%
COMMIO, LLC – 1 6.7%
BANDWIDTH.COM CLEC, LLC - WY Bandwidth 1 6.7%
T-MOBILE USA, INC. T-Mobile 1 6.7%
TRI TEL, INC. – 1 6.7%
UNION TELEPHONE COMPANY – 1 6.7%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 6.7%

Frequently asked

Which prefixes belong to CODY in area code 307?

15 blocks: 204, 213, 250, 272, 291, 296, 302, 419, 474, 527, 578, 586 and 3 more, all listed in the table above.

Which carriers have numbers in CODY?

QWEST CORPORATION (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY (2 blocks), ONVOY, LLC - WY (2 blocks), AIRUS, INC. - WY (1 block), LEVEL 3 COMMUNICATIONS, LLC - WY (1 block), COMMIO, 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 CODY 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