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-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
947-729 6 Royal Oak MI 624H ONVOY SPECTRUM, LLC 340   2022-01-13   
947-944 3 Farmington MI 624H ONVOY SPECTRUM, LLC 340   2022-01-15   
947-944 4 Farmington MI 624H ONVOY SPECTRUM, LLC 340   2022-01-15   
947-955 0 Pontiac MI 624H ONVOY SPECTRUM, LLC 340   2021-11-28   
947-955 1 Pontiac MI 624H ONVOY SPECTRUM, LLC 340   2021-11-28   
947-955 2 Pontiac MI 624H ONVOY SPECTRUM, LLC 340   2021-11-28   
947-955 3 Pontiac MI 624H ONVOY SPECTRUM, LLC 340   2021-11-28   
947-955 4 Pontiac MI 624H ONVOY SPECTRUM, LLC 340   2021-11-28   
989-271 2 Gaines MI 624H ONVOY SPECTRUM, LLC 340   2021-11-22   
989-271 3 Gaines MI 624H ONVOY SPECTRUM, LLC 340   2021-11-22   
989-461 5 Gaines MI 624H ONVOY SPECTRUM, LLC 340   2021-06-14   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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