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

CRLSBACRNS prefixes in area code 575

NANPA records 3 assigned NXX blocks to rate center CRLSBACRNS 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 ONVOY SPECTRUM, LLC (1), TON80 COMMUNICATIONS, LLC (1), VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW (1). The earliest assignment on record here is 2018-05-08 and the most recent 2022-02-24. 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
575-573 Charter ONVOY SPECTRUM, LLC 2018-05-08 yes yes
575-688 TON80 COMMUNICATIONS, LLC 2022-02-24 yes yes
575-785 Windstream VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW – 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 SPECTRUM, LLC Charter 1 33.3%
TON80 COMMUNICATIONS, LLC – 1 33.3%
VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW Windstream 1 33.3%

Frequently asked

Which prefixes belong to CRLSBACRNS in area code 575?

3 blocks: 573, 688, 785. The table above gives the holder of each.

Which carriers have numbers in CRLSBACRNS?

ONVOY SPECTRUM, LLC (1 block), TON80 COMMUNICATIONS, LLC (1 block), VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CRLSBACRNS 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