Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Hallsville, MO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
573-296 A CLMAMOXAXIX  093F ONVOY, LLC - MO 521      
573-296 0 CLMAMOXAXCX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 521   2013-03-23   
573-296 1 JFCYMOXAXSX  073H TELNYX LLC 521   2020-07-31   
573-296 2 CLMAMOWB0MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 521   2017-12-15   
573-296 3 CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2020-07-05   
573-296 4 CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2018-07-16   
573-296 5 CLMAMOXAXFX  250A CHARITON VALLEY COMMUNICATIONS CORPORATION 521   2020-06-27   
573-296 6 CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2020-07-05   
573-296 8 CLMAMOXAXCX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 521   2015-08-09   
573-696 A HLVLMOXARS0  9784 CENTURYTEL OF MISSOURI LLC (CNTL) DBA CENTURYLINK 521      
573-696 0 HLVLMOXARS0  9784 CENTURYTEL OF MISSOURI LLC (CNTL) DBA CENTURYLINK 521      
573-696 1 HLVLMOXARS0  9784 CENTURYTEL OF MISSOURI LLC (CNTL) DBA CENTURYLINK 521      
573-696 2 HLVLMOXARS0  9784 CENTURYTEL OF MISSOURI LLC (CNTL) DBA CENTURYLINK 521      
573-696 3 HLVLMOXARS0  9784 CENTURYTEL OF MISSOURI LLC (CNTL) DBA CENTURYLINK 521      
573-696 4 CLMAMOXAXCX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 521   2020-09-19   
573-696 5 CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2020-11-07   
573-696 6 CLMAMOXAQMD  554A SOCKET TELECOM, LLC - MO 521   2004-09-19   
573-696 7 CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2020-11-07   
573-696 8 CLMAMOXAX6X  5607 CHARTER FIBERLINK - MISSOURI, LLC - MO 521   2018-12-09   
573-949 A CLMAMOXAXIX  093F ONVOY, LLC - MO 521      
573-949 0 CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2022-12-16   
573-949 2 CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2021-05-25   
573-949 3 CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2021-05-25   
573-949 9 CLMAMOXAXCX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 521   2021-05-24   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.