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
608-340 9 Briggsville WI 624H ONVOY SPECTRUM, LLC 354   2023-06-01   
608-360 1 Loganville WI 624H ONVOY SPECTRUM, LLC 354   2023-06-01   
608-432 0 Wisconsin Dells WI 624H ONVOY SPECTRUM, LLC 354   2023-06-01   
608-478 9 Sun Prairie WI 624H ONVOY SPECTRUM, LLC 354   2023-06-01   
608-508 2 Westfield WI 624H ONVOY SPECTRUM, LLC 354   2023-06-01   
608-570 2 Richland Center WI 624H ONVOY SPECTRUM, LLC 354   2023-06-01   
608-656 2 Mauston WI 624H ONVOY SPECTRUM, LLC 354   2023-06-01   
608-702 4 Pardeeville WI 624H ONVOY SPECTRUM, LLC 354   2023-06-01   
608-714 A Merrimac WI 624H ONVOY SPECTRUM, LLC 354      
608-714 9 Merrimac WI 624H ONVOY SPECTRUM, LLC 354   2021-12-11   
608-715 A Adams WI 624H ONVOY SPECTRUM, LLC 354      
608-715 7 Adams WI 624H ONVOY SPECTRUM, LLC 354   2023-07-10   
608-803 2 Spring Green WI 624H ONVOY SPECTRUM, LLC 354   2023-06-01   
608-918 A Sauk City WI 624H ONVOY SPECTRUM, LLC 354      
608-918 9 Sauk City WI 624H ONVOY SPECTRUM, LLC 354   2023-07-10   
608-948 A Ridgeway WI 624H ONVOY SPECTRUM, LLC 354      
608-948 9 Ridgeway WI 624H ONVOY SPECTRUM, LLC 354   2023-07-10   

Last updated: Mon, 01 Apr 2024 02:18:34 UTC

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