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: 710

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-710 A Martinsburg MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
573-710 4 Martinsburg MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2006-06-30   
573-710 5 Martinsburg MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2020-11-08   
573-710 7 Martinsburg MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2020-11-08   
573-710 8 Martinsburg MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2024-03-23   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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