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: 283

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-283 A Essex MO ESSXMOAVRS5  9533 SOUTHWESTERN BELL 520      
573-283 0 Essex MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2013-05-05   
573-283 1 Essex MO   9533 SOUTHWESTERN BELL 520      
573-283 2 Essex MO   516C AT&T CORP. 520   2011-05-20   
573-283 3 Essex MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2012-04-06   
573-283 4 Essex MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2013-05-05   
573-283 5 Essex MO   9533 SOUTHWESTERN BELL 520      
573-283 6 Essex MO   515J IP HORIZON LLC 520   2013-12-19   
573-283 7 Essex MO   624H ONVOY SPECTRUM, LLC 520   2025-01-11   
573-283 8 Essex MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2015-03-01   
573-283 9 Essex MO   9533 SOUTHWESTERN BELL 520      

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

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