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: 901

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-901 A Malden MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
573-901 0 Malden MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2016-09-28   
573-901 1 Malden MO   515J IP HORIZON LLC 520   2013-12-29   
573-901 2 Malden MO STLSMOWQCMD  515J IP HORIZON LLC 520   2023-12-29   
573-901 3 Malden MO STLSMOWQCMD  515J IP HORIZON LLC 520   2023-12-29   
573-901 5 Malden MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2021-07-24   
573-901 6 Malden MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2015-07-10   
573-901 8 Malden MO STLSMOGZ6MD  073H TELNYX LLC 520   2017-06-16   
573-901 9 Malden MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2025-01-11   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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