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

MOUNT CALM prefixes in area code 254

NANPA records 3 assigned NXX blocks to rate center MOUNT CALM 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 VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW (2), AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX (1). The earliest assignment on record here is 2013-04-10 and the most recent 2015-07-01. 2 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
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
254-637 Windstream VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW 2015-07-01 yes yes
254-993 Windstream VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW – yes yes
254-994 AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX 2013-04-10 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, LP-TX #1 DBA WINDSTREAM COMM SW Windstream 2 66.7%
AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX – 1 33.3%

Frequently asked

Which prefixes belong to MOUNT CALM in area code 254?

3 blocks: 637, 993, 994. The table above gives the holder of each.

Which carriers have numbers in MOUNT CALM?

VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW (2 blocks), AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-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 MOUNT CALM 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