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
920-631 3 Beaver Dam WI 624H ONVOY SPECTRUM, LLC 356   2021-06-25   
920-646 4 Cleveland WI 624H ONVOY SPECTRUM, LLC 356   2021-06-25   
920-653 2 Mapleton WI 624H ONVOY SPECTRUM, LLC 356   2021-06-26   
920-656 3 Neosho WI 624H ONVOY SPECTRUM, LLC 356   2021-06-26   
920-669 4 Mayville WI 624H ONVOY SPECTRUM, LLC 356   2021-06-26   
920-689 0 Burnett WI 624H ONVOY SPECTRUM, LLC 356   2021-06-25   
920-696 4 Clyman WI 624H ONVOY SPECTRUM, LLC 356   2021-06-25   
920-697 8 Tisch Mills WI 624H ONVOY SPECTRUM, LLC 356   2021-06-27   
920-775 1 Valders WI 624H ONVOY SPECTRUM, LLC 356   2021-06-27   
920-802 8 Sheboygan Falls WI 624H ONVOY SPECTRUM, LLC 356   2021-06-26   
920-828 5 Howards Grove WI 624H ONVOY SPECTRUM, LLC 356   2021-06-25   
920-828 6 Howards Grove WI 624H ONVOY SPECTRUM, LLC 356   2022-01-27   
920-872 8 Rosendale WI 624H ONVOY SPECTRUM, LLC 356   2021-06-26   
920-881 3 St Nazianz WI 624H ONVOY SPECTRUM, LLC 356   2021-06-27   
920-908 8 Horicon WI 624H ONVOY SPECTRUM, LLC 356   2024-03-31   
920-925 4 Lebanon WI 624H ONVOY SPECTRUM, LLC 356   2021-06-25   
920-935 3 Pickett WI 624H ONVOY SPECTRUM, LLC 356   2021-06-26   
920-941 1 Watertown WI 624H ONVOY SPECTRUM, LLC 356   2021-06-27   
920-945 1 Lake Mills WI 624H ONVOY SPECTRUM, LLC 356   2021-06-25   
920-952 4 Fond du Lac WI 624H ONVOY SPECTRUM, LLC 356   2021-06-25   

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Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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