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: 955

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-955 A Bismarck MO STLSMO09WMD  516C AT&T CORP. 520      
573-955 0 Bismarck MO   093F ONVOY, LLC - MO 520   2016-09-26   
573-955 1 Bismarck MO   093F ONVOY, LLC - MO 520   2016-09-26   
573-955 5 Bismarck MO   965H FRACTEL, LLC 520   2020-01-11   
573-955 6 Bismarck MO   624H ONVOY SPECTRUM, LLC 520   2024-03-23   
573-955 7 Bismarck MO   516C AT&T CORP. 520   2010-01-25   
573-955 8 Bismarck MO   093F ONVOY, LLC - MO 520   2019-05-07   
573-955 9 Bismarck MO   093F ONVOY, LLC - MO 520   2019-05-07   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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