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: 681 [Rate centres in NPA 681] [Dial plan for NPA 681]

NXX: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
681-579 A Charleston Zone 1 WV   700J WAVENATION, LLC 254   2025-10-16   
681-579 0 Charleston Zone 1 WV   700J WAVENATION, LLC 254   2025-10-16   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.