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

ELDON prefixes in area code 573

NANPA records 5 assigned NXX blocks to rate center ELDON in area code 573, 0.6% 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. 5 holders hold those blocks, the largest being UNITED STATES CELLULAR - MO (1), SOUTHWESTERN BELL (1), LEVEL 3 COMMUNICATIONS, LLC - MO (1). The earliest assignment on record here is 2002-05-07 and the most recent 2021-06-17. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 235, 641 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.6% of 573
5 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
573-375 UNITED STATES CELLULAR - MO – yes yes
573-392 AT&T SOUTHWESTERN BELL – no yes
573-557 Lumen LEVEL 3 COMMUNICATIONS, LLC - MO 2002-05-07 yes yes
573-602 Onvoy ONVOY, LLC - MO 2021-06-17 yes yes
573-920 Bandwidth BANDWIDTH.COM CLEC, LLC - MO 2016-08-23 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
UNITED STATES CELLULAR - MO – 1 20%
SOUTHWESTERN BELL AT&T 1 20%
LEVEL 3 COMMUNICATIONS, LLC - MO Lumen 1 20%
ONVOY, LLC - MO Onvoy 1 20%
BANDWIDTH.COM CLEC, LLC - MO Bandwidth 1 20%

Frequently asked

Which prefixes belong to ELDON in area code 573?

5 blocks: 375, 392, 557, 602, 920. The table above gives the holder of each.

Which carriers have numbers in ELDON?

UNITED STATES CELLULAR - MO (1 block), SOUTHWESTERN BELL (1 block), LEVEL 3 COMMUNICATIONS, LLC - MO (1 block), ONVOY, LLC - MO (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 ELDON 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