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

LKOZKOSBCH prefixes in area code 573

NANPA records 15 assigned NXX blocks to rate center LKOZKOSBCH in area code 573, 1.9% 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. 5 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - IL (4), SOUTHWESTERN BELL (4), T-MOBILE USA, INC. (3). The earliest assignment on record here is 2001-06-19 and the most recent 2007-09-14. 11 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

15 assigned blocks – 1.9% of 573
5 holders of record
11 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
573-216 T-Mobile T-MOBILE USA, INC. – yes yes
573-280 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
573-286 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
573-302 AT&T SOUTHWESTERN BELL – yes yes
573-348 AT&T SOUTHWESTERN BELL – no yes
573-365 AT&T SOUTHWESTERN BELL – no yes
573-434 T-Mobile T-MOBILE USA, INC. – yes yes
573-480 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
573-552 Lumen LEVEL 3 COMMUNICATIONS, LLC - MO 2001-06-19 yes yes
573-692 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
573-693 Lumen LEVEL 3 COMMUNICATIONS, LLC - MO – yes yes
573-723 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 2007-09-14 yes yes
573-745 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO – yes yes
573-746 T-Mobile T-MOBILE USA, INC. 2001-10-29 yes yes
573-964 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
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 4 26.7%
SOUTHWESTERN BELL AT&T 4 26.7%
T-MOBILE USA, INC. T-Mobile 3 20%
LEVEL 3 COMMUNICATIONS, LLC - MO Lumen 2 13.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO Verizon 2 13.3%

Frequently asked

Which prefixes belong to LKOZKOSBCH in area code 573?

15 blocks: 216, 280, 286, 302, 348, 365, 434, 480, 552, 692, 693, 723 and 3 more, all listed in the table above.

Which carriers have numbers in LKOZKOSBCH?

NEW CINGULAR WIRELESS PCS, LLC - IL (4 blocks), SOUTHWESTERN BELL (4 blocks), T-MOBILE USA, INC. (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - MO (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is LKOZKOSBCH 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