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

SEDALIA prefixes in area code 660

NANPA records 23 assigned NXX blocks to rate center SEDALIA in area code 660, 4.4% of the 518 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. 11 holders hold those blocks, the largest being AERIAL COMMUNICATIONS, INC. (4), SOUTHWESTERN BELL (4), NEW CINGULAR WIRELESS PCS, LLC - IL (3). The earliest assignment on record here is 2001-05-10 and the most recent 2023-04-11. 20 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 220, 270, 740 – overlay codes cover the same geography, so a rate center is served by all of them.

23 assigned blocks – 4.4% of 660
11 holders of record
20 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
660-221 T-Mobile AERIAL COMMUNICATIONS, INC. – no yes
660-281 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
660-287 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
660-310 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - MO 2020-04-24 yes yes
660-317 T-Mobile METROPCS, INC. 2021-09-28 yes yes
660-460 T-Mobile AERIAL COMMUNICATIONS, INC. – yes yes
660-473 T-Mobile AERIAL COMMUNICATIONS, INC. – yes yes
660-530 AT&T SOUTHWESTERN BELL – yes yes
660-553 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2005-02-18 yes yes
660-570 NETGENUITY INC. 2015-01-26 yes yes
660-596 T-Mobile AERIAL COMMUNICATIONS, INC. 2001-05-10 yes yes
660-600 FRACTEL, LLC 2019-01-31 yes yes
660-619 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO – yes yes
660-620 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO – yes yes
660-650 Onvoy ONVOY, LLC - MO 2019-01-10 yes yes
660-660 Onvoy ONVOY, LLC - MO 2022-10-18 yes yes
660-680 Onvoy ONVOY, LLC - MO 2021-03-04 yes yes
660-826 AT&T SOUTHWESTERN BELL – no yes
660-827 AT&T SOUTHWESTERN BELL – no yes
660-829 AT&T SOUTHWESTERN BELL – yes yes
660-851 Charter CHARTER IP ENABLED SERVICES, LLC 2007-07-06 yes yes
660-951 Bandwidth BANDWIDTH.COM CLEC, LLC - MO 2014-12-24 yes yes
660-971 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 2023-04-11 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
AERIAL COMMUNICATIONS, INC. T-Mobile 4 17.4%
SOUTHWESTERN BELL AT&T 4 17.4%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 3 13%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO Verizon 3 13%
ONVOY, LLC - MO Onvoy 3 13%
TELEPORT COMMUNICATIONS AMERICA, LLC - MO AT&T 1 4.3%
METROPCS, INC. T-Mobile 1 4.3%
NETGENUITY INC. – 1 4.3%
FRACTEL, LLC – 1 4.3%
CHARTER IP ENABLED SERVICES, LLC Charter 1 4.3%
BANDWIDTH.COM CLEC, LLC - MO Bandwidth 1 4.3%

Frequently asked

Which prefixes belong to SEDALIA in area code 660?

23 blocks: 221, 281, 287, 310, 317, 460, 473, 530, 553, 570, 596, 600 and 11 more, all listed in the table above.

Which carriers have numbers in SEDALIA?

AERIAL COMMUNICATIONS, INC. (4 blocks), SOUTHWESTERN BELL (4 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO (3 blocks), ONVOY, LLC - MO (3 blocks), TELEPORT COMMUNICATIONS AMERICA, 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 SEDALIA 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 660

All 518 prefixes in 660