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: 640

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-640 A Silex MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520      
573-640 0 Silex MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2021-11-11   
573-640 1 Silex MO   792K CHARTER IP ENABLED SERVICES, LLC 520   2023-08-13   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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