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

RED RIVER prefixes in area code 575

NANPA records 3 assigned NXX blocks to rate center RED RIVER in area code 575, 0.6% of the 521 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 CENTURYLINK COMMUNICATIONS, LLC (1), TON80 COMMUNICATIONS, LLC (1), QWEST CORPORATION (1). The earliest assignment on record here is 2015-06-05 and the most recent 2022-03-01. 3 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

3 assigned blocks – 0.6% of 575
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
575-440 Lumen CENTURYLINK COMMUNICATIONS, LLC 2015-06-05 yes yes
575-599 TON80 COMMUNICATIONS, LLC 2022-03-01 yes yes
575-754 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
CENTURYLINK COMMUNICATIONS, LLC Lumen 1 33.3%
TON80 COMMUNICATIONS, LLC – 1 33.3%
QWEST CORPORATION Lumen 1 33.3%

Frequently asked

Which prefixes belong to RED RIVER in area code 575?

3 blocks: 440, 599, 754. The table above gives the holder of each.

Which carriers have numbers in RED RIVER?

CENTURYLINK COMMUNICATIONS, LLC (1 block), TON80 COMMUNICATIONS, LLC (1 block), QWEST CORPORATION (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is RED RIVER 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 575

All 521 prefixes in 575