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

ROSENTHAL prefixes in area code 254

NANPA records 3 assigned NXX blocks to rate center ROSENTHAL in area code 254, 0.4% of the 672 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), SOUTHWESTERN BELL (1). The earliest assignment on record here is 2015-06-24 and the most recent 2023-07-11. 3 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

3 assigned blocks – 0.4% of 254
2 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
254-401 Onvoy ONVOY, LLC - TX 2015-06-24 yes yes
254-502 Onvoy ONVOY, LLC - TX 2023-07-11 yes yes
254-881 AT&T SOUTHWESTERN BELL – 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%
SOUTHWESTERN BELL AT&T 1 33.3%

Frequently asked

Which prefixes belong to ROSENTHAL in area code 254?

3 blocks: 401, 502, 881. The table above gives the holder of each.

Which carriers have numbers in ROSENTHAL?

ONVOY, LLC - TX (2 blocks), SOUTHWESTERN BELL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is ROSENTHAL 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 254

All 672 prefixes in 254