Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 843 [Rate centres in NPA 843] [Dial plan for NPA 843]

NXX: 576

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
843-576 A Charleston SC CHTNSCDTXSY  829J PAETEC ITEL, LLC 436   2025-02-18   
843-576 0 Charleston SC   829J PAETEC ITEL, LLC 436      
843-576 1 Charleston SC   829J PAETEC ITEL, LLC 436      
843-576 2 Charleston SC   829J PAETEC ITEL, LLC 436      
843-576 3 Charleston SC   829J PAETEC ITEL, LLC 436      
843-576 4 Charleston SC   318J COMCAST IP PHONE, LLC 436   2007-03-26   
843-576 5 Charleston SC   829J PAETEC ITEL, LLC 436      
843-576 6 Charleston SC   829J PAETEC ITEL, LLC 436      
843-576 7 Charleston SC   829J PAETEC ITEL, LLC 436      
843-576 8 Charleston SC   829J PAETEC ITEL, LLC 436      
843-576 9 Charleston SC   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 436   2006-12-10   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.