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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Dunmor, KY

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
270-657 A AUBNKYXADS1  0413 LOGAN TEL. COOP., INC. 464      
270-657 2   0413 LOGAN TEL. COOP., INC. 464      
270-657 4   4369 LEVEL 3 COMMUNICATIONS, LLC - KY 464   2024-08-17   
270-657 8   0413 LOGAN TEL. COOP., INC. 464      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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