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

ELK-GRNBLF prefixes in area code 509

NANPA records 4 assigned NXX blocks to rate center ELK-GRNBLF in area code 509, 0.5% 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 (2), COMCAST IP PHONE, LLC (1), WAVENATION, LLC (1). The earliest assignment on record here is 2005-09-21 and the most recent 2005-09-21. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.5% of 509
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
509-238 Lumen QWEST CORPORATION – yes yes
509-292 Lumen QWEST CORPORATION – yes yes
509-414 Comcast COMCAST IP PHONE, LLC 2005-09-21 yes yes
509-615 WAVENATION, LLC – 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 2 50%
COMCAST IP PHONE, LLC Comcast 1 25%
WAVENATION, LLC – 1 25%

Frequently asked

Which prefixes belong to ELK-GRNBLF in area code 509?

4 blocks: 238, 292, 414, 615. The table above gives the holder of each.

Which carriers have numbers in ELK-GRNBLF?

QWEST CORPORATION (2 blocks), COMCAST IP PHONE, LLC (1 block), WAVENATION, 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 ELK-GRNBLF 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