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

FALL CITY prefixes in area code 425

NANPA records 4 assigned NXX blocks to rate center FALL CITY in area code 425, 0.6% of the 628 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 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK (1), ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM (1), ONVOY, LLC - WA (1). The earliest assignment on record here is 2005-02-28 and the most recent 2022-09-13. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.6% of 425
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
425-222 Lumen CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK – yes yes
425-441 Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 2005-02-28 yes yes
425-464 Onvoy ONVOY, LLC - WA 2022-09-13 yes yes
425-490 Comcast COMCAST IP PHONE, LLC 2017-12-07 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
CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK Lumen 1 25%
ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM Allstream 1 25%
ONVOY, LLC - WA Onvoy 1 25%
COMCAST IP PHONE, LLC Comcast 1 25%

Frequently asked

Which prefixes belong to FALL CITY in area code 425?

4 blocks: 222, 441, 464, 490. The table above gives the holder of each.

Which carriers have numbers in FALL CITY?

CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK (1 block), ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM (1 block), ONVOY, LLC - WA (1 block), COMCAST IP PHONE, 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 FALL CITY 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 425

All 628 prefixes in 425