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: NWRKOHXA6MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
740-614 A Newark OH 624H ONVOY SPECTRUM, LLC 324   2024-04-07   
740-614 6 Newark OH 624H ONVOY SPECTRUM, LLC 324   2024-04-07   
740-665 1 Gratiot OH 624H ONVOY SPECTRUM, LLC 324   2024-10-28   
740-745 0 St Louisville OH 624H ONVOY SPECTRUM, LLC 324   2024-10-28   
740-873 1 Hanover OH 624H ONVOY SPECTRUM, LLC 324   2024-10-28   
740-920 1 Granville OH 624H ONVOY SPECTRUM, LLC 324   2024-10-27   

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

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