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

CHEHALIS prefixes in area code 360

NANPA records 16 assigned NXX blocks to rate center CHEHALIS in area code 360, 2.0% of the 786 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 QWEST CORPORATION (5), UNITED STATES CELLULAR - WA (3), LEVEL 3 COMMUNICATIONS, LLC - WA (2). 14 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

16 assigned blocks – 2% of 360
8 holders of record
14 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
360-219 Lumen LEVEL 3 COMMUNICATIONS, LLC - WA – yes yes
360-242 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - WA – yes yes
360-262 Lumen QWEST CORPORATION – yes yes
360-266 Lumen QWEST CORPORATION – yes yes
360-269 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
360-304 T-Mobile T-MOBILE USA, INC. – yes yes
360-324 T-Mobile T-MOBILE USA, INC. – yes yes
360-345 RAINIER CONNECT, INC. - WA – yes yes
360-520 UNITED STATES CELLULAR - WA – yes yes
360-557 Lumen LEVEL 3 COMMUNICATIONS, LLC - WA – yes yes
360-740 Lumen QWEST CORPORATION – no yes
360-748 Lumen QWEST CORPORATION – yes yes
360-767 Lumen QWEST CORPORATION – yes yes
360-880 UNITED STATES CELLULAR - WA – yes yes
360-948 Lumen CENTURYLINK COMMUNICATIONS, LLC – yes yes
360-996 UNITED STATES CELLULAR - WA – yes 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 5 31.2%
UNITED STATES CELLULAR - WA – 3 18.8%
LEVEL 3 COMMUNICATIONS, LLC - WA Lumen 2 12.5%
T-MOBILE USA, INC. T-Mobile 2 12.5%
TELEPORT COMMUNICATIONS AMERICA, LLC - WA AT&T 1 6.2%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 6.2%
RAINIER CONNECT, INC. - WA – 1 6.2%
CENTURYLINK COMMUNICATIONS, LLC Lumen 1 6.2%

Frequently asked

Which prefixes belong to CHEHALIS in area code 360?

16 blocks: 219, 242, 262, 266, 269, 304, 324, 345, 520, 557, 740, 748 and 4 more, all listed in the table above.

Which carriers have numbers in CHEHALIS?

QWEST CORPORATION (5 blocks), UNITED STATES CELLULAR - WA (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - WA (2 blocks), T-MOBILE USA, INC. (2 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - WA (1 block), 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 CHEHALIS 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 360

All 786 prefixes in 360