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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
517-744 6 Lansing MI 624H ONVOY SPECTRUM, LLC 346   2022-01-08   
517-744 7 Lansing MI 624H ONVOY SPECTRUM, LLC 346   2022-01-08   
517-744 8 Lansing MI 624H ONVOY SPECTRUM, LLC 346   2022-01-08   
517-786 8 Charlotte MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-790 6 Mosherville MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-800 1 Jackson MI 624H ONVOY SPECTRUM, LLC 346   2022-01-10   
517-800 4 Jackson MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-800 7 Jackson MI 624H ONVOY SPECTRUM, LLC 346   2022-01-10   
517-800 9 Jackson MI 624H ONVOY SPECTRUM, LLC 346   2022-01-10   
517-826 2 Jonesville MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-842 8 Grass Lake MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-877 5 Litchfield MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-889 8 Holt MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-901 4 Reading MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-907 8 Clarklake MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-910 8 Onondaga MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-919 8 Laingsburg MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-928 5 Mason MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-948 8 Mulliken MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-955 6 Dansville MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-972 5 Bell Oak MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-992 8 Williamston MI 624H ONVOY SPECTRUM, LLC 346   2021-06-17   

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

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