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

BROWNFIELD prefixes in area code 806

NANPA records 9 assigned NXX blocks to rate center BROWNFIELD in area code 806, 1.2% of the 734 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. 7 holders hold those blocks, the largest being VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW (2), NEW CINGULAR WIRELESS PCS, LLC - IL (2), ONVOY, LLC - TX (1). The earliest assignment on record here is 2011-04-11 and the most recent 2021-11-15. 6 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

9 assigned blocks – 1.2% of 806
7 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
806-301 Onvoy ONVOY, LLC - TX – yes yes
806-614 Windstream VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW 2016-07-25 yes yes
806-636 VEXUS 2011-04-11 no yes
806-637 Windstream VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW – no yes
806-638 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
806-760 T-Mobile T-MOBILE USA, INC. 2021-06-15 yes yes
806-887 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
806-904 Charter ONVOY SPECTRUM, LLC 2021-11-15 yes yes
806-906 POKA LAMBRO TELEPHONE COMPANY 2020-10-01 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
VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW Windstream 2 22.2%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 2 22.2%
ONVOY, LLC - TX Onvoy 1 11.1%
VEXUS – 1 11.1%
T-MOBILE USA, INC. T-Mobile 1 11.1%
ONVOY SPECTRUM, LLC Charter 1 11.1%
POKA LAMBRO TELEPHONE COMPANY – 1 11.1%

Frequently asked

Which prefixes belong to BROWNFIELD in area code 806?

9 blocks: 301, 614, 636, 637, 638, 760, 887, 904, 906. The table above gives the holder of each.

Which carriers have numbers in BROWNFIELD?

VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (2 blocks), ONVOY, LLC - TX (1 block), VEXUS (1 block), T-MOBILE USA, INC. (1 block), ONVOY SPECTRUM, 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 BROWNFIELD 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 806

All 734 prefixes in 806