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

KENNETT prefixes in area code 573

NANPA records 7 assigned NXX blocks to rate center KENNETT in area code 573, 0.9% of the 786 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. 6 holders hold those blocks, the largest being SOUTHWESTERN BELL (2), NEW CINGULAR WIRELESS PCS, LLC - IL (1), ONVOY, LLC - MO (1). The earliest assignment on record here is 2002-05-07 and the most recent 2021-08-27. 7 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

7 assigned blocks – 0.9% of 573
6 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
573-344 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
573-551 Onvoy ONVOY, LLC - MO – yes yes
573-559 Lumen LEVEL 3 COMMUNICATIONS, LLC - MO 2002-05-07 yes yes
573-601 T-Mobile T-MOBILE USA, INC. 2021-08-27 yes yes
573-717 AT&T SOUTHWESTERN BELL – yes yes
573-888 AT&T SOUTHWESTERN BELL – yes yes
573-919 Bandwidth BANDWIDTH.COM CLEC, LLC - MO – 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 2 28.6%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 14.3%
ONVOY, LLC - MO Onvoy 1 14.3%
LEVEL 3 COMMUNICATIONS, LLC - MO Lumen 1 14.3%
T-MOBILE USA, INC. T-Mobile 1 14.3%
BANDWIDTH.COM CLEC, LLC - MO Bandwidth 1 14.3%

Frequently asked

Which prefixes belong to KENNETT in area code 573?

7 blocks: 344, 551, 559, 601, 717, 888, 919. The table above gives the holder of each.

Which carriers have numbers in KENNETT?

SOUTHWESTERN BELL (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), ONVOY, LLC - MO (1 block), LEVEL 3 COMMUNICATIONS, LLC - MO (1 block), T-MOBILE USA, INC. (1 block), BANDWIDTH.COM CLEC, LLC - MO (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is KENNETT 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 573

All 786 prefixes in 573