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

HANNIBAL prefixes in area code 573

NANPA records 13 assigned NXX blocks to rate center HANNIBAL 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. 6 holders hold those blocks, the largest being SOUTHWESTERN BELL (5), UNITED STATES CELLULAR - MO (3), T-MOBILE USA, INC. (2). The earliest assignment on record here is 2001-06-15 and the most recent 2015-07-24. 12 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 315, 680 – overlay codes cover the same geography, so a rate center is served by all of them.

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

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
573-221 AT&T SOUTHWESTERN BELL – no yes
573-231 AT&T SOUTHWESTERN BELL – yes yes
573-248 AT&T SOUTHWESTERN BELL – yes yes
573-406 AT&T SOUTHWESTERN BELL – yes yes
573-501 UNITED STATES CELLULAR - MO 2014-04-01 yes yes
573-541 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-10-08 yes yes
573-577 T-Mobile T-MOBILE USA, INC. 2015-04-13 yes yes
573-600 CHARITON VALLEY COMMUNICATIONS CORPORATION 2015-07-24 yes yes
573-603 Charter CHARTER IP ENABLED SERVICES, LLC 2013-01-23 yes yes
573-629 AT&T SOUTHWESTERN BELL 2001-06-15 yes yes
573-719 UNITED STATES CELLULAR - MO 2010-03-19 yes yes
573-795 T-Mobile T-MOBILE USA, INC. – yes yes
573-822 UNITED STATES CELLULAR - MO – 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
SOUTHWESTERN BELL AT&T 5 38.5%
UNITED STATES CELLULAR - MO – 3 23.1%
T-MOBILE USA, INC. T-Mobile 2 15.4%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 7.7%
CHARITON VALLEY COMMUNICATIONS CORPORATION – 1 7.7%
CHARTER IP ENABLED SERVICES, LLC Charter 1 7.7%

Frequently asked

Which prefixes belong to HANNIBAL in area code 573?

13 blocks: 221, 231, 248, 406, 501, 541, 577, 600, 603, 629, 719, 795 and 1 more, all listed in the table above.

Which carriers have numbers in HANNIBAL?

SOUTHWESTERN BELL (5 blocks), UNITED STATES CELLULAR - MO (3 blocks), T-MOBILE USA, INC. (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), CHARITON VALLEY COMMUNICATIONS CORPORATION (1 block), CHARTER IP ENABLED 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 HANNIBAL 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