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

TIMPSON prefixes in area code 936

NANPA records 4 assigned NXX blocks to rate center TIMPSON in area code 936, 0.9% of the 422 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 (2), SOUTHWESTERN BELL (1), CENTURYLINK COMMUNICATIONS, LLC (1). The earliest assignment on record here is 2006-07-12 and the most recent 2021-01-28. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.9% of 936
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
936-254 AT&T SOUTHWESTERN BELL – yes yes
936-301 Lumen CENTURYLINK COMMUNICATIONS, LLC 2015-05-08 yes yes
936-353 Onvoy ONVOY, LLC - TX 2006-07-12 yes yes
936-810 Onvoy ONVOY, LLC - TX 2021-01-28 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 50%
SOUTHWESTERN BELL AT&T 1 25%
CENTURYLINK COMMUNICATIONS, LLC Lumen 1 25%

Frequently asked

Which prefixes belong to TIMPSON in area code 936?

4 blocks: 254, 301, 353, 810. The table above gives the holder of each.

Which carriers have numbers in TIMPSON?

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

Is TIMPSON 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 936

All 422 prefixes in 936