Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 573 [Rate centres in NPA 573] [Dial plan for NPA 573]

NXX: 504

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-504 A Puxico MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520      
573-504 0 Puxico MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2017-03-17   
573-504 1 Puxico MO   073H TELNYX LLC 520   2018-10-24   
573-504 2 Puxico MO   792K CHARTER IP ENABLED SERVICES, LLC 520   2025-12-14   
573-504 5 Puxico MO   093F ONVOY, LLC - MO 520   2021-07-24   
573-504 6 Puxico MO   6123 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2017-07-03   
573-504 8 Puxico MO   624H ONVOY SPECTRUM, LLC 520   2025-01-11   
573-504 9 Puxico MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2024-02-23   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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