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

PORT ORCH prefixes in area code 360

NANPA records 10 assigned NXX blocks to rate center PORT ORCH in area code 360, 1.3% 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. 6 holders hold those blocks, the largest being QWEST CORPORATION (5), TELEPORT COMMUNICATIONS AMERICA, LLC - WA (1), LEVEL 3 COMMUNICATIONS, LLC - WA (1). The earliest assignment on record here is 2009-06-11 and the most recent 2019-04-15. 7 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 code 564 – overlay codes cover the same geography, so a rate center is served by all of them.

10 assigned blocks – 1.3% of 360
6 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
360-329 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - WA – yes yes
360-443 Lumen LEVEL 3 COMMUNICATIONS, LLC - WA – yes yes
360-519 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
360-602 ASTOUND BROADBAND, LLC - WA 2009-06-11 yes yes
360-769 Lumen QWEST CORPORATION – yes yes
360-845 Onvoy ONVOY, LLC - WA 2019-04-15 yes yes
360-871 Lumen QWEST CORPORATION – no yes
360-874 Lumen QWEST CORPORATION – yes yes
360-876 Lumen QWEST CORPORATION – no yes
360-895 Lumen QWEST CORPORATION – 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 5 50%
TELEPORT COMMUNICATIONS AMERICA, LLC - WA AT&T 1 10%
LEVEL 3 COMMUNICATIONS, LLC - WA Lumen 1 10%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 10%
ASTOUND BROADBAND, LLC - WA – 1 10%
ONVOY, LLC - WA Onvoy 1 10%

Frequently asked

Which prefixes belong to PORT ORCH in area code 360?

10 blocks: 329, 443, 519, 602, 769, 845, 871, 874, 876, 895. The table above gives the holder of each.

Which carriers have numbers in PORT ORCH?

QWEST CORPORATION (5 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - WA (1 block), LEVEL 3 COMMUNICATIONS, LLC - WA (1 block), NEW CINGULAR WIRELESS PCS, LLC (1 block), ASTOUND BROADBAND, LLC - WA (1 block), ONVOY, LLC - WA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is PORT ORCH 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