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: 572

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-572 A Leasburg MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
573-572 0 Leasburg MO   073H TELNYX LLC 520   2020-12-26   
573-572 2 Leasburg MO   093F ONVOY, LLC - MO 520   2020-12-18   
573-572 3 Leasburg MO   093F ONVOY, LLC - MO 520   2020-12-18   

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

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