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: 509

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-509 A Altenburg-Frohna MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
573-509 0 Altenburg-Frohna MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2016-10-19   
573-509 1 Altenburg-Frohna MO STLSMOWQCMD  515J IP HORIZON LLC 520   2023-12-29   
573-509 2 Altenburg-Frohna MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2017-12-10   
573-509 3 Altenburg-Frohna MO STLSMOGZ6MD  073H TELNYX LLC 520   2018-12-01   
573-509 4 Altenburg-Frohna MO STLSMOWQCMD  515J IP HORIZON LLC 520   2023-12-29   
573-509 5 Altenburg-Frohna MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2021-07-24   
573-509 9 Altenburg-Frohna MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2025-01-12   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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