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: 428

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-428 A Dayton TN CHTGTNNS04Z  829J PAETEC ITEL, LLC 472   2024-12-05   
423-428 0 Dayton TN CHTGTNNS04Z  829J PAETEC ITEL, LLC 472      
423-428 7 Dayton TN CHTGTNNS04Z  829J PAETEC ITEL, LLC 472      
423-428 8 Dayton TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2008-02-19   
423-428 9 Dayton TN   792K CHARTER IP ENABLED SERVICES, LLC 472   2008-03-08   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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