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: 242

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-242 A Clarksville MO CLVLMOCIRS6  9533 SOUTHWESTERN BELL 520      
573-242 0 Clarksville MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2009-01-18   
573-242 1 Clarksville MO   9533 SOUTHWESTERN BELL 520      
573-242 2 Clarksville MO   515J IP HORIZON LLC 520   2013-12-19   
573-242 3 Clarksville MO   9533 SOUTHWESTERN BELL 520      
573-242 4 Clarksville MO   093F ONVOY, LLC - MO 520   2016-09-27   
573-242 5 Clarksville MO   093F ONVOY, LLC - MO 520   2016-09-27   
573-242 6 Clarksville MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2012-10-15   
573-242 8 Clarksville MO   073H TELNYX LLC 520   2018-12-01   
573-242 9 Clarksville MO   9533 SOUTHWESTERN BELL 520      

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

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