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.
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Switch: CHTNWVCEHMD

NPA-NXX BLOCK Rate Centre Region 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: Tue, 01 Sep 2026 00:40:05 UTC

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