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

BLUM prefixes in area code 254

NANPA records 3 assigned NXX blocks to rate center BLUM in area code 254, 0.4% of the 672 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. 2 holders hold those blocks, the largest being ONVOY, LLC - TX (2), TEXAS WINDSTREAM, LLC (1). The earliest assignment on record here is 2019-09-05 and the most recent 2023-07-13. 3 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

3 assigned blocks – 0.4% of 254
2 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
254-356 Onvoy ONVOY, LLC - TX 2019-09-05 yes yes
254-508 Onvoy ONVOY, LLC - TX 2023-07-13 yes yes
254-874 Windstream TEXAS WINDSTREAM, 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
ONVOY, LLC - TX Onvoy 2 66.7%
TEXAS WINDSTREAM, LLC Windstream 1 33.3%

Frequently asked

Which prefixes belong to BLUM in area code 254?

3 blocks: 356, 508, 874. The table above gives the holder of each.

Which carriers have numbers in BLUM?

ONVOY, LLC - TX (2 blocks), TEXAS WINDSTREAM, 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 BLUM 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 254

All 672 prefixes in 254