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 Switch LATA LIR Eff date Disc date
920-560 7 Appleton WI APPLWI01X0Y  350   2007-03-15   
920-560 8 Appleton WI APPLWI01X0Y  350   2007-03-15   
920-593 1 Green Bay WI APPLWI01X0Y  350   2009-05-16   
920-593 2 Green Bay WI APPLWI01X0Y  350   2005-01-26   
920-593 3 Green Bay WI APPLWI01X0Y  350   2005-10-16   
920-593 4 Green Bay WI APPLWI01X0Y  350   2007-07-21   
920-593 5 Green Bay WI APPLWI01X0Y  350   2005-10-16   
920-593 6 Green Bay WI APPLWI01X0Y  350   2007-07-21   
920-593 7 Green Bay WI APPLWI01X0Y  350   2010-07-12   
920-593 8 Green Bay WI APPLWI01X0Y  350   2003-11-16   
920-651 A Oshkosh WI APPLWI01X0Y  350      
920-651 0 Oshkosh WI APPLWI01X0Y  350      
920-651 1 Oshkosh WI APPLWI01X0Y  350      
920-651 3 Oshkosh WI APPLWI01X0Y  350      
920-651 4 Oshkosh WI APPLWI01X0Y  350      
920-651 6 Oshkosh WI APPLWI01X0Y  350      
920-651 8 Oshkosh WI APPLWI01X0Y  350      
920-651 9 Oshkosh WI APPLWI01X0Y  350      
920-679 7 Watertown WI MILWWI12XBY  356   2023-05-01   
920-687 7 Little Chute WI APPLWI01X0Y  350   2010-11-06   
920-702 A Appleton WI APPLWI01X0Y  350      
920-707 A Appleton WI APPLWI01X0Y  350      
920-712 A Green Bay WI APPLWI01X0Y  350      
920-712 1 Green Bay WI APPLWI01X0Y  350      
920-712 2 Green Bay WI APPLWI01X0Y  350      
920-712 4 Green Bay WI APPLWI01X0Y  350      
920-712 6 Green Bay WI APPLWI01X0Y  350      
920-713 A Green Bay WI APPLWI01X0Y  350      
920-713 0 Green Bay WI APPLWI01X0Y  350      
920-713 2 Green Bay WI APPLWI01X0Y  350      
920-713 5 Green Bay WI APPLWI01X0Y  350      
920-747 1 Jefferson WI MILWWI12XBY  356   2023-05-01   
920-750 5 Appleton WI APPLWI01X0Y  350   2008-04-28   
920-750 6 Appleton WI APPLWI01X0Y  350   2008-04-28   
920-750 7 Appleton WI APPLWI01X0Y  350   2010-07-12   
920-771 2 Mill Center WI APPLWI01X0Y  350   2023-03-13   
920-784 2 Green Bay WI APPLWI01X0Y  350   2010-07-12   
920-802 3 Sheboygan Falls WI MILWWI12XBY  356   2021-06-28   
920-814 A Sheboygan WI MILWWI12XBY  356      
920-814 1 Sheboygan WI MILWWI12XBY  356   2023-05-14   
920-816 A Manitowoc WI MILWWI12XBY  356      
920-816 2 Manitowoc WI MILWWI12XBY  356   2023-06-01   
920-817 3 Fort Atkinson WI MILWWI12XBY  356   2023-05-30   
920-882 A Appleton WI APPLWI01X0Y  350      
920-884 A Green Bay WI APPLWI01X0Y  350      
920-886 A Neenah WI APPLWI01X0Y  350      
920-886 0 Neenah WI APPLWI01X0Y  350      
920-886 1 Neenah WI APPLWI01X0Y  350      
920-886 2 Neenah WI APPLWI01X0Y  350      
920-886 3 Neenah WI APPLWI01X0Y  350      

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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