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

HUFFMAN prefixes in area code 346

NANPA records 3 assigned NXX blocks to rate center HUFFMAN in area code 346, 0.4% of the 752 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. 2 holders hold those blocks, the largest being ONVOY, LLC - TX (2), FOREMOST TELECOMMUNICATIONS CORPORATION - TX (1). The earliest assignment on record here is 2014-01-16 and the most recent 2026-04-09. 3 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 281, 713, 832 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.4% of 346
2 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
346-485 Onvoy ONVOY, LLC - TX 2021-07-20 yes yes
346-926 Onvoy ONVOY, LLC - TX 2026-04-09 yes yes
346-999 FOREMOST TELECOMMUNICATIONS CORPORATION - TX 2014-01-16 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, LLC - TX Onvoy 2 66.7%
FOREMOST TELECOMMUNICATIONS CORPORATION - TX – 1 33.3%

Frequently asked

Which prefixes belong to HUFFMAN in area code 346?

3 blocks: 485, 926, 999. The table above gives the holder of each.

Which carriers have numbers in HUFFMAN?

ONVOY, LLC - TX (2 blocks), FOREMOST TELECOMMUNICATIONS CORPORATION - 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 HUFFMAN 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 346

All 752 prefixes in 346