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

PREMONT prefixes in area code 361

NANPA records 3 assigned NXX blocks to rate center PREMONT in area code 361, 0.6% of the 538 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, LLC - TX (1), VTX COMMUNICATIONS, LLC (1), FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (1). The earliest assignment on record here is 2011-08-18 and the most recent 2021-07-06. 2 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 361
3 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
361-303 Onvoy ONVOY, LLC - TX 2021-07-06 yes yes
361-346 VTX COMMUNICATIONS, LLC 2011-08-18 no yes
361-348 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – 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 1 33.3%
VTX COMMUNICATIONS, LLC – 1 33.3%
FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS Frontier 1 33.3%

Frequently asked

Which prefixes belong to PREMONT in area code 361?

3 blocks: 303, 346, 348. The table above gives the holder of each.

Which carriers have numbers in PREMONT?

ONVOY, LLC - TX (1 block), VTX COMMUNICATIONS, LLC (1 block), FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is PREMONT 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 361

All 538 prefixes in 361