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: 490

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-490 A Lewistown MO WNVLMOXAXXX  093F ONVOY, LLC - MO 520      
573-490 0 Lewistown MO   073H TELNYX LLC 520   2020-08-01   
573-490 2 Lewistown MO   093F ONVOY, LLC - MO 520   2019-11-23   
573-490 3 Lewistown MO   093F ONVOY, LLC - MO 520   2019-11-23   
573-490 4 Lewistown MO   093F ONVOY, LLC - MO 520   2018-12-08   
573-490 7 Lewistown MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2013-10-14   

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

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