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.

Switch: EPHRPAXEAMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
223-265 9 Akron PA 624H ONVOY SPECTRUM, LLC 226   2024-03-02   
223-315 0 Denver PA 624H ONVOY SPECTRUM, LLC 226   2024-03-02   
223-331 9 Adamstown PA 624H ONVOY SPECTRUM, LLC 226   2024-03-02   
223-901 A Ephrata PA 624H ONVOY SPECTRUM, LLC 226      
223-901 9 Ephrata PA 624H ONVOY SPECTRUM, LLC 226   2022-01-14   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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