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: 287

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
854-287 A Mount Pleasant SC   548E ONVOY, LLC - SC 436   2025-03-02   
854-287 0 Mount Pleasant SC   548E ONVOY, LLC - SC 436   2025-03-02   
854-287 1 Mount Pleasant SC   548E ONVOY, LLC - SC 436   2025-04-12   
854-287 3 Mount Pleasant SC   5258 LEVEL 3 COMMUNICATIONS, LLC - SC 436   2025-07-21   
854-287 4 Mount Pleasant SC   5258 LEVEL 3 COMMUNICATIONS, LLC - SC 436   2025-07-21   
854-287 5 Mount Pleasant SC   5258 LEVEL 3 COMMUNICATIONS, LLC - SC 436   2025-07-21   
854-287 6 Mount Pleasant SC   5258 LEVEL 3 COMMUNICATIONS, LLC - SC 436   2025-07-21   
854-287 7 Mount Pleasant SC   5258 LEVEL 3 COMMUNICATIONS, LLC - SC 436   2025-07-21   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.