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]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-998 0 Williamsville MO WSVLMOXARP0  1885 WINDSTREAM MISSOURI, INC. 520      
573-998 1 Williamsville MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2025-01-11   
573-998 2 Williamsville MO WSVLMOXARS0  1885 WINDSTREAM MISSOURI, INC. 520      
573-998 3 Williamsville MO WSVLMOXARP1  1885 WINDSTREAM MISSOURI, INC. 520      
573-998 6 Williamsville MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2021-07-24   
573-998 8 Williamsville MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2019-09-27   
573-998 9 Williamsville MO WSVLMOXARP1  1885 WINDSTREAM MISSOURI, INC. 520      
573-999 A Columbia MO CLMAMOXAXCX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 521      

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Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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