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: CHTNSCFUDMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
843-637 2 Charleston SC 490J DISH WIRELESS, LLC 436   2025-03-06   
843-637 8 Charleston SC 490J DISH WIRELESS, LLC 436   2025-01-03   
843-688 9 Lebanon SC 490J DISH WIRELESS, LLC 436   2023-07-03   
854-231 6 Laurel Bay SC 490J DISH WIRELESS, LLC 436   2024-06-09   
854-236 4 Beaufort SC 490J DISH WIRELESS, LLC 436   2023-07-04   
854-246 A Charleston SC 490J DISH WIRELESS, LLC 436      
854-246 9 Charleston SC 490J DISH WIRELESS, LLC 436   2023-07-03   
854-263 1 St Stephen SC 490J DISH WIRELESS, LLC 436   2023-12-01   
854-580 2 Awendaw SC 490J DISH WIRELESS, LLC 436   2023-07-17   
854-768 3 Edisto Island SC 490J DISH WIRELESS, LLC 436   2023-07-17   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.