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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Switch: MILWWIAUDS1

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
920-945 3 Lake Mills WI 225C ONVOY, LLC - WI 356   2021-04-08   
920-945 5 Lake Mills WI 225C ONVOY, LLC - WI 356   2018-08-19   
920-945 6 Lake Mills WI 225C ONVOY, LLC - WI 356   2020-03-22   
920-945 7 Lake Mills WI 225C ONVOY, LLC - WI 356   2020-03-22   
920-945 8 Lake Mills WI 225C ONVOY, LLC - WI 356   2021-04-08   
920-953 3 Valders WI 225C ONVOY, LLC - WI 356   2021-04-12   
920-953 5 Valders WI 225C ONVOY, LLC - WI 356   2020-01-06   
920-994 5 Random Lake WI 225C ONVOY, LLC - WI 356   2020-04-19   

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Last updated: Sat, 30 Sep 2023 22:09:11 UTC

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