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

CLE ELUM prefixes in area code 509

NANPA records 5 assigned NXX blocks to rate center CLE ELUM in area code 509, 0.7% of the 763 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. 3 holders hold those blocks, the largest being QWEST CORPORATION (3), NEW CINGULAR WIRELESS PCS, LLC (1), T-MOBILE USA, INC. (1). The earliest assignment on record here is 2001-12-14 and the most recent 2001-12-14. 5 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

5 assigned blocks – 0.7% of 509
3 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
509-260 AT&T NEW CINGULAR WIRELESS PCS, LLC 2001-12-14 yes yes
509-304 T-Mobile T-MOBILE USA, INC. – yes yes
509-656 Lumen QWEST CORPORATION – yes yes
509-674 Lumen QWEST CORPORATION – yes yes
509-852 Lumen QWEST CORPORATION – 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 3 60%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 20%
T-MOBILE USA, INC. T-Mobile 1 20%

Frequently asked

Which prefixes belong to CLE ELUM in area code 509?

5 blocks: 260, 304, 656, 674, 852. The table above gives the holder of each.

Which carriers have numbers in CLE ELUM?

QWEST CORPORATION (3 blocks), NEW CINGULAR WIRELESS PCS, LLC (1 block), T-MOBILE USA, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CLE ELUM 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 509

All 763 prefixes in 509