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

CLARKWOOD prefixes in area code 361

NANPA records 3 assigned NXX blocks to rate center CLARKWOOD 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 SOUTHWESTERN BELL (1), BANDWIDTH.COM CLEC, LLC - TX (1), TON80 COMMUNICATIONS, LLC (1). The earliest assignment on record here is 2011-03-21 and the most recent 2022-02-16. 3 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
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
361-265 AT&T SOUTHWESTERN BELL – yes yes
361-420 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2011-03-21 yes yes
361-472 TON80 COMMUNICATIONS, LLC 2022-02-16 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
SOUTHWESTERN BELL AT&T 1 33.3%
BANDWIDTH.COM CLEC, LLC - TX Bandwidth 1 33.3%
TON80 COMMUNICATIONS, LLC – 1 33.3%

Frequently asked

Which prefixes belong to CLARKWOOD in area code 361?

3 blocks: 265, 420, 472. The table above gives the holder of each.

Which carriers have numbers in CLARKWOOD?

SOUTHWESTERN BELL (1 block), BANDWIDTH.COM CLEC, LLC - TX (1 block), TON80 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 CLARKWOOD 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