Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 573 [Rate centres in NPA 573] [Dial plan for NPA 573]

NXX: 678

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-678 A Richwoods MO RCWDMOORRS1  9533 SOUTHWESTERN BELL 520      
573-678 1 Richwoods MO   9533 SOUTHWESTERN BELL 520      
573-678 2 Richwoods MO   9533 SOUTHWESTERN BELL 520      
573-678 3 Richwoods MO   093F ONVOY, LLC - MO 520   2016-04-04   
573-678 4 Richwoods MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2013-05-05   
573-678 5 Richwoods MO   093F ONVOY, LLC - MO 520   2016-04-04   
573-678 6 Richwoods MO   516C AT&T CORP. 520   2011-05-20   
573-678 7 Richwoods MO   792K CHARTER IP ENABLED SERVICES, LLC 520   2024-07-28   
573-678 8 Richwoods MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2013-05-05   
573-678 9 Richwoods MO   093F ONVOY, LLC - MO 520   2016-09-29   

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

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