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: 878 [Rate centres in NPA 878] [Dial plan for NPA 878]

NXX: 587

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
878-587 A Enon Valley PA PITBPADTXFX  624H ONVOY SPECTRUM, LLC 234      
878-587 0 Enon Valley PA PITBPADTXFX  624H ONVOY SPECTRUM, LLC 234   2023-10-05   
878-587 1 Enon Valley PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2023-10-09   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.