Local Calling Guide

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NPA: 573 [Rate centres in NPA 573] [Dial plan for NPA 573]

NXX: 492

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-492 A Martinsburg MO MRBGMOXARS0  1885 WINDSTREAM MISSOURI, INC. 520      
573-492 0 Martinsburg MO   1885 WINDSTREAM MISSOURI, INC. 520      
573-492 1 Martinsburg MO   792K CHARTER IP ENABLED SERVICES, LLC 520   2018-10-17   
573-492 2 Martinsburg MO   093F ONVOY, LLC - MO 520   2020-07-20   
573-492 3 Martinsburg MO   093F ONVOY, LLC - MO 520   2020-07-20   
573-492 4 Martinsburg MO   073H TELNYX LLC 520   2020-08-01   
573-492 6 Martinsburg MO   1885 WINDSTREAM MISSOURI, INC. 520      
573-492 7 Martinsburg MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2021-09-18   
573-492 9 Martinsburg MO   1885 WINDSTREAM MISSOURI, INC. 520      

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

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