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

PINEDALE prefixes in area code 307

NANPA records 7 assigned NXX blocks to rate center PINEDALE in area code 307, 1.4% 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. 4 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - WY (2), UNION TELEPHONE COMPANY (2), CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK (2). The earliest assignment on record here is 2003-10-20 and the most recent 2023-05-24. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

7 assigned blocks – 1.4% of 307
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
307-231 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY – yes yes
307-323 Lumen LEVEL 3 COMMUNICATIONS, LLC - WY 2019-07-22 yes yes
307-360 UNION TELEPHONE COMPANY – no yes
307-367 Lumen CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK – yes yes
307-416 Lumen LEVEL 3 COMMUNICATIONS, LLC - WY 2023-05-24 yes yes
307-537 Lumen CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK – no yes
307-749 UNION TELEPHONE COMPANY 2003-10-20 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
LEVEL 3 COMMUNICATIONS, LLC - WY Lumen 2 28.6%
UNION TELEPHONE COMPANY – 2 28.6%
CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK Lumen 2 28.6%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY Verizon 1 14.3%

Frequently asked

Which prefixes belong to PINEDALE in area code 307?

7 blocks: 231, 323, 360, 367, 416, 537, 749. The table above gives the holder of each.

Which carriers have numbers in PINEDALE?

LEVEL 3 COMMUNICATIONS, LLC - WY (2 blocks), UNION TELEPHONE COMPANY (2 blocks), CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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 PINEDALE 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