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

RAWLINS prefixes in area code 307

NANPA records 9 assigned NXX blocks to rate center RAWLINS in area code 307, 1.8% 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. 5 holders hold those blocks, the largest being UNION TELEPHONE COMPANY (2), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY (2), QWEST CORPORATION (2). The earliest assignment on record here is 2003-06-16 and the most recent 2025-04-30. 5 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

9 assigned blocks – 1.8% of 307
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
307-320 UNION TELEPHONE COMPANY – no yes
307-321 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY – no yes
307-324 Lumen QWEST CORPORATION – no yes
307-328 Lumen QWEST CORPORATION – yes yes
307-370 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY – yes yes
307-417 Onvoy ONVOY, LLC - WY – yes yes
307-483 AT&T NEW CINGULAR WIRELESS PCS, LLC 2025-04-30 yes yes
307-667 Onvoy ONVOY, LLC - WY 2021-02-28 yes yes
307-710 UNION TELEPHONE COMPANY 2003-06-16 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
UNION TELEPHONE COMPANY – 2 22.2%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY Verizon 2 22.2%
QWEST CORPORATION Lumen 2 22.2%
ONVOY, LLC - WY Onvoy 2 22.2%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 11.1%

Frequently asked

Which prefixes belong to RAWLINS in area code 307?

9 blocks: 320, 321, 324, 328, 370, 417, 483, 667, 710. The table above gives the holder of each.

Which carriers have numbers in RAWLINS?

UNION TELEPHONE COMPANY (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY (2 blocks), QWEST CORPORATION (2 blocks), ONVOY, LLC - WY (2 blocks), NEW CINGULAR WIRELESS PCS, 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 RAWLINS 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