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: 538

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-538 A Boss MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
573-538 0 Boss MO STLSMOWQ8MD  073H TELNYX LLC 520   2020-07-26   
573-538 2 Boss MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2019-11-25   
573-538 3 Boss MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2019-11-25   
573-538 4 Boss MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2021-03-07   
573-538 5 Boss MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2018-12-07   
573-538 6 Boss MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2022-07-01   
573-538 7 Boss MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2013-10-14   
573-538 8 Boss MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2024-03-23   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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