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: 704

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-704 A Ironton MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
573-704 0 Ironton MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2024-03-23   
573-704 4 Ironton MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2021-08-27   
573-704 5 Ironton MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2021-08-27   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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