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: 577

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
681-577 A Logan WV   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 254   2026-11-20   
681-577 1 Logan WV   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 254   2026-11-20   
681-577 2 Logan WV   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 254   2026-11-20   
681-577 3 Logan WV   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 254   2026-11-20   
681-577 4 Logan WV   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 254   2026-11-20   
681-577 5 Logan WV   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 254   2026-11-20   
681-577 6 Logan WV   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 254   2026-11-20   
681-577 7 Logan WV   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 254   2026-11-20   
681-577 8 Logan WV   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 254   2026-11-20   
681-577 9 Logan WV   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 254   2026-11-20   

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.