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

DIMMITT prefixes in area code 806

NANPA records 5 assigned NXX blocks to rate center DIMMITT in area code 806, 0.7% 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. 4 holders hold those blocks, the largest being VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW (2), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (1), NEW CINGULAR WIRELESS PCS, LLC - IL (1). The earliest assignment on record here is 2003-02-27 and the most recent 2017-10-11. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

5 assigned blocks – 0.7% of 806
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
806-240 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2003-02-27 yes yes
806-369 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2004-06-17 yes yes
806-436 Windstream VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 2017-10-11 yes yes
806-541 Onvoy ONVOY, LLC - TX 2017-03-14 yes yes
806-647 Windstream VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW – no 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, LD-TX #2 DBA WINDSTREAM COMM SW Windstream 2 40%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX Verizon 1 20%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 20%
ONVOY, LLC - TX Onvoy 1 20%

Frequently asked

Which prefixes belong to DIMMITT in area code 806?

5 blocks: 240, 369, 436, 541, 647. The table above gives the holder of each.

Which carriers have numbers in DIMMITT?

VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), ONVOY, LLC - TX (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is DIMMITT 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