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

SNA TERESA prefixes in area code 575

NANPA records 9 assigned NXX blocks to rate center SNA TERESA in area code 575, 1.7% 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. 6 holders hold those blocks, the largest being QWEST CORPORATION (3), ONVOY, LLC - NM (2), TWC IP ENABLED SERVICES, LLC (1). The earliest assignment on record here is 2003-07-01 and the most recent 2024-02-09. 9 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

9 assigned blocks – 1.7% of 575
6 holders of record
9 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
575-203 Onvoy ONVOY, LLC - NM 2009-07-14 yes yes
575-305 Onvoy ONVOY, LLC - NM – yes yes
575-332 Charter TWC IP ENABLED SERVICES, LLC 2010-11-24 yes yes
575-502 Bandwidth BANDWIDTH.COM CLEC, LLC - NM – yes yes
575-565 Charter ONVOY SPECTRUM, LLC 2024-02-09 yes yes
575-589 Lumen QWEST CORPORATION – yes yes
575-619 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2003-07-01 yes yes
575-874 Lumen QWEST CORPORATION – yes yes
575-997 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 33.3%
ONVOY, LLC - NM Onvoy 2 22.2%
TWC IP ENABLED SERVICES, LLC Charter 1 11.1%
BANDWIDTH.COM CLEC, LLC - NM Bandwidth 1 11.1%
ONVOY SPECTRUM, LLC Charter 1 11.1%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 11.1%

Frequently asked

Which prefixes belong to SNA TERESA in area code 575?

9 blocks: 203, 305, 332, 502, 565, 589, 619, 874, 997. The table above gives the holder of each.

Which carriers have numbers in SNA TERESA?

QWEST CORPORATION (3 blocks), ONVOY, LLC - NM (2 blocks), TWC IP ENABLED SERVICES, LLC (1 block), BANDWIDTH.COM CLEC, LLC - NM (1 block), ONVOY SPECTRUM, LLC (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SNA TERESA 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