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 8 Williamsville MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2019-09-27   
573-998 9 Williamsville MO   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: Thu, 29 Jan 2026 14:35:03 UTC

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