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.

Switch: FLRNSCMA5MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
843-831 1 Lakewood SC 5258 LEVEL 3 COMMUNICATIONS, LLC - SC 432   2020-11-21   
843-956 4 Lake City SC 5258 LEVEL 3 COMMUNICATIONS, LLC - SC 432   2016-10-19   
843-968 A Darlington SC 5258 LEVEL 3 COMMUNICATIONS, LLC - SC 432      
843-968 0 Darlington SC 5258 LEVEL 3 COMMUNICATIONS, LLC - SC 432   2004-12-17   
843-968 4 Darlington SC 5258 LEVEL 3 COMMUNICATIONS, LLC - SC 432   2003-09-01   
843-968 5 Darlington SC 5258 LEVEL 3 COMMUNICATIONS, LLC - SC 432   2005-08-05   
854-218 7 East Conway SC 5258 LEVEL 3 COMMUNICATIONS, LLC - SC 432   2022-02-19   

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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