Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

NXX: 536

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-536 A Sweetwater TN KNVLTNMAYAY  829J PAETEC ITEL, LLC 474   2024-12-05   
423-536 0 Sweetwater TN   829J PAETEC ITEL, LLC 474      
423-536 1 Sweetwater TN   829J PAETEC ITEL, LLC 474      
423-536 3 Sweetwater TN   829J PAETEC ITEL, LLC 474      
423-536 4 Sweetwater TN   829J PAETEC ITEL, LLC 474      
423-536 5 Sweetwater TN   829J PAETEC ITEL, LLC 474      
423-536 6 Sweetwater TN   4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2004-11-15   
423-536 7 Sweetwater TN   525E ONVOY, LLC - TN 474   2006-06-16   
423-536 8 Sweetwater TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474   2006-11-16   
423-536 9 Sweetwater TN   124F BANDWIDTH.COM CLEC, LLC - TN 474   2008-11-28   

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

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