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

ELSBERRY prefixes in area code 573

NANPA records 3 assigned NXX blocks to rate center ELSBERRY in area code 573, 0.4% 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. 3 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - MO (1), ONVOY, LLC - MO (1), SOUTHWESTERN BELL (1). The earliest assignment on record here is 2003-01-10 and the most recent 2021-03-12. 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 573
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
573-312 Lumen LEVEL 3 COMMUNICATIONS, LLC - MO 2003-01-10 yes yes
573-867 Onvoy ONVOY, LLC - MO 2021-03-12 yes yes
573-898 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
LEVEL 3 COMMUNICATIONS, LLC - MO Lumen 1 33.3%
ONVOY, LLC - MO Onvoy 1 33.3%
SOUTHWESTERN BELL AT&T 1 33.3%

Frequently asked

Which prefixes belong to ELSBERRY in area code 573?

3 blocks: 312, 867, 898. The table above gives the holder of each.

Which carriers have numbers in ELSBERRY?

LEVEL 3 COMMUNICATIONS, LLC - MO (1 block), ONVOY, LLC - MO (1 block), 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 ELSBERRY 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