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

SNOHOMISH prefixes in area code 360

NANPA records 20 assigned NXX blocks to rate center SNOHOMISH in area code 360, 2.5% 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. 9 holders hold those blocks, the largest being ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER (9), LEVEL 3 COMMUNICATIONS, LLC - WA (3), TELEPORT COMMUNICATIONS AMERICA, LLC - WA (2). The earliest assignment on record here is 2001-01-25 and the most recent 2005-11-17. 17 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

20 assigned blocks – 2.5% of 360
9 holders of record
17 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
360-217 Lumen LEVEL 3 TELECOM OF WASHINGTON, LLC - WA – yes yes
360-243 Lumen LEVEL 3 COMMUNICATIONS, LLC - WA 2001-01-25 yes yes
360-282 Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM – yes yes
360-294 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - WA – yes yes
360-348 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
360-365 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - WA – yes yes
360-453 Charter ONVOY SPECTRUM, LLC – yes yes
360-467 Lumen LEVEL 3 COMMUNICATIONS, LLC - WA – yes yes
360-512 Lumen LEVEL 3 COMMUNICATIONS, LLC - WA – yes yes
360-563 Ziply Fiber ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER – yes yes
360-568 Ziply Fiber ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER – no yes
360-668 Ziply Fiber ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER – no yes
360-793 Ziply Fiber ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER – yes yes
360-794 Ziply Fiber ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER – no yes
360-799 Ziply Fiber ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER – yes yes
360-804 SKYLINE TELECOM COMPANY - WA 2005-11-17 yes yes
360-805 Ziply Fiber ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER – yes yes
360-822 Onvoy ONVOY, LLC - WA – yes yes
360-862 Ziply Fiber ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER – yes yes
360-863 Ziply Fiber ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER – 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
ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER Ziply Fiber 9 45%
LEVEL 3 COMMUNICATIONS, LLC - WA Lumen 3 15%
TELEPORT COMMUNICATIONS AMERICA, LLC - WA AT&T 2 10%
LEVEL 3 TELECOM OF WASHINGTON, LLC - WA Lumen 1 5%
ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM Allstream 1 5%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 5%
ONVOY SPECTRUM, LLC Charter 1 5%
SKYLINE TELECOM COMPANY - WA – 1 5%
ONVOY, LLC - WA Onvoy 1 5%

Frequently asked

Which prefixes belong to SNOHOMISH in area code 360?

20 blocks: 217, 243, 282, 294, 348, 365, 453, 467, 512, 563, 568, 668 and 8 more, all listed in the table above.

Which carriers have numbers in SNOHOMISH?

ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER (9 blocks), LEVEL 3 COMMUNICATIONS, LLC - WA (3 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - WA (2 blocks), LEVEL 3 TELECOM OF WASHINGTON, LLC - WA (1 block), ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM (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 SNOHOMISH 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