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

SIKESTON prefixes in area code 573

NANPA records 13 assigned NXX blocks to rate center SIKESTON in area code 573, 1.7% 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 NEW CINGULAR WIRELESS PCS, LLC - IL (4), SOUTHWESTERN BELL (4), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO (2). The earliest assignment on record here is 2001-06-07 and the most recent 2022-04-29. 8 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

13 assigned blocks – 1.7% of 573
5 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
573-258 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
573-272 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
573-380 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
573-471 AT&T SOUTHWESTERN BELL – no yes
573-472 AT&T SOUTHWESTERN BELL – no yes
573-475 AT&T SOUTHWESTERN BELL – yes yes
573-481 AT&T SOUTHWESTERN BELL – yes yes
573-620 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO – no yes
573-621 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO – yes yes
573-703 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-06-07 yes yes
573-816 T-Mobile T-MOBILE USA, INC. 2022-04-29 yes yes
573-838 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2005-03-03 yes yes
573-931 T-Mobile T-MOBILE USA, INC. – 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 4 30.8%
SOUTHWESTERN BELL AT&T 4 30.8%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO Verizon 2 15.4%
T-MOBILE USA, INC. T-Mobile 2 15.4%
AMERICAN MESSAGING SERVICES, LLC American Messaging 1 7.7%

Frequently asked

Which prefixes belong to SIKESTON in area code 573?

13 blocks: 258, 272, 380, 471, 472, 475, 481, 620, 621, 703, 816, 838 and 1 more, all listed in the table above.

Which carriers have numbers in SIKESTON?

NEW CINGULAR WIRELESS PCS, LLC - IL (4 blocks), SOUTHWESTERN BELL (4 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO (2 blocks), T-MOBILE USA, INC. (2 blocks), AMERICAN MESSAGING SERVICES, 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 SIKESTON 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