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

MARBLEHILL prefixes in area code 573

NANPA records 5 assigned NXX blocks to rate center MARBLEHILL 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. 4 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - IL (2), LEVEL 3 COMMUNICATIONS, LLC - MO (1), SOUTHWESTERN BELL (1). The earliest assignment on record here is 2003-01-09 and the most recent 2022-01-25. 5 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 678, 770 – overlay codes cover the same geography, so a rate center is served by all of them.

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

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
573-208 Lumen LEVEL 3 COMMUNICATIONS, LLC - MO 2003-01-09 yes yes
573-238 AT&T SOUTHWESTERN BELL – yes yes
573-282 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2015-12-18 yes yes
573-618 Onvoy ONVOY, LLC - MO 2022-01-25 yes yes
573-741 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2010-02-19 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
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 2 40%
LEVEL 3 COMMUNICATIONS, LLC - MO Lumen 1 20%
SOUTHWESTERN BELL AT&T 1 20%
ONVOY, LLC - MO Onvoy 1 20%

Frequently asked

Which prefixes belong to MARBLEHILL in area code 573?

5 blocks: 208, 238, 282, 618, 741. The table above gives the holder of each.

Which carriers have numbers in MARBLEHILL?

NEW CINGULAR WIRELESS PCS, LLC - IL (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - MO (1 block), SOUTHWESTERN BELL (1 block), ONVOY, 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 MARBLEHILL 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