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: MILWWI12XTX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
262-462 A Bristol WI 624H ONVOY SPECTRUM, LLC 356      
262-562 A Genoa City WI 624H ONVOY SPECTRUM, LLC 356      
262-585 A Port Washington WI 624H ONVOY SPECTRUM, LLC 356      
262-868 A Wheatland WI 624H ONVOY SPECTRUM, LLC 356      
262-892 A Williams Bay WI 624H ONVOY SPECTRUM, LLC 356      
274-274 A Manitowoc WI 624H ONVOY SPECTRUM, LLC 356   2024-12-14   
414-200 A Milwaukee Zone 1 WI 624H ONVOY SPECTRUM, LLC 356      
414-300 A Milwaukee Zone 1 WI 624H ONVOY SPECTRUM, LLC 356      
414-360 A Milwaukee Zone 5 WI 624H ONVOY SPECTRUM, LLC 356   2024-03-14   
414-415 A Milwaukee Zone 3 WI 624H ONVOY SPECTRUM, LLC 356      
414-500 A Milwaukee Zone 3 WI 624H ONVOY SPECTRUM, LLC 356   2024-03-14   
414-710 A Milwaukee Zone 1 WI 624H ONVOY SPECTRUM, LLC 356      
414-850 A Milwaukee Zone 1 WI 624H ONVOY SPECTRUM, LLC 356      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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