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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NPA: 327 [Rate centres in NPA 327] [Dial plan for NPA 327]

NXX: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
327-666 A Dermott AR   348F ONVOY, LLC - AR 530   2026-02-17   
327-666 6 Dermott AR   348F ONVOY, LLC - AR 530   2026-02-17   
327-666 7 Dermott AR   348F ONVOY, LLC - AR 530   2026-02-17   
327-666 8 Dermott AR   348F ONVOY, LLC - AR 530   2026-02-17   

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

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