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: 854 [Rate centres in NPA 854] [Dial plan for NPA 854]

NXX: 238

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
854-238 A Mount Pleasant SC CHTNSCPSX1Z  732J NUSO, LLC 436      
854-238 0 Mount Pleasant SC CHTNSCDT15Z  8645 SUNCOM DBA T-MOBILE USA 436   2023-07-14   
854-238 1 Mount Pleasant SC CHTNSCPSX1Z  732J NUSO, LLC 436   2023-04-06   
854-238 2 Mount Pleasant SC MNCRSCXBDS2  712C BERKELEY CABLE TELEVISION INC DBA HOME TELECOM-SC 436   2023-06-01   
854-238 3 Mount Pleasant SC CHTNSCDTX6Y  548E ONVOY, LLC - SC 436   2024-02-25   
854-238 4 Mount Pleasant SC CHTNSCDTX6Y  548E ONVOY, LLC - SC 436   2024-02-25   
854-238 5 Mount Pleasant SC CHTNSCDTX6Y  548E ONVOY, LLC - SC 436   2024-02-25   
854-238 6 Mount Pleasant SC CHTNSCDTX6Y  548E ONVOY, LLC - SC 436   2024-02-25   
854-238 7 Mount Pleasant SC CHTNSCDT15Z  8645 SUNCOM DBA T-MOBILE USA 436   2024-03-02   
854-238 8 Mount Pleasant SC CHTNSCDTX6Z  077F BANDWIDTH.COM CLEC, LLC - SC 436   2024-10-05   
854-238 9 Mount Pleasant SC CHTNSCDTX6Z  077F BANDWIDTH.COM CLEC, LLC - SC 436   2024-10-05   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.