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
586-619 7 Center Line MI 318J COMCAST IP PHONE, LLC 340   2006-06-22   
586-619 9 Center Line MI 318J COMCAST IP PHONE, LLC 340   2006-06-22   
586-646 5 New Haven MI 318J COMCAST IP PHONE, LLC 340   2008-03-14   
586-648 6 New Baltimore MI 318J COMCAST IP PHONE, LLC 340   2007-04-01   
586-649 7 Mount Clemens MI 318J COMCAST IP PHONE, LLC 340   2006-10-04   
586-684 3 New Baltimore MI 318J COMCAST IP PHONE, LLC 340   2012-01-07   
586-690 8 Mount Clemens MI 318J COMCAST IP PHONE, LLC 340   2011-08-19   
586-697 5 Washington MI 318J COMCAST IP PHONE, LLC 340   2011-08-19   
586-698 2 Warren MI 318J COMCAST IP PHONE, LLC 340   2007-03-23   
586-722 7 Warren MI 318J COMCAST IP PHONE, LLC 340   2009-11-23   
586-738 6 Mount Clemens MI 318J COMCAST IP PHONE, LLC 340   2003-06-09   
586-741 5 Mount Clemens MI 318J COMCAST IP PHONE, LLC 340   2007-12-21   
586-741 8 Mount Clemens MI 318J COMCAST IP PHONE, LLC 340   2007-12-21   
586-765 1 Mount Clemens MI 318J COMCAST IP PHONE, LLC 340   2015-01-27   
586-785 A Romeo MI 318J COMCAST IP PHONE, LLC 340      
586-785 3 Romeo MI 318J COMCAST IP PHONE, LLC 340   2015-05-28   
586-786 4 Washington MI 318J COMCAST IP PHONE, LLC 340   2013-02-17   
586-789 7 Mount Clemens MI 318J COMCAST IP PHONE, LLC 340   2013-12-27   
586-799 4 Utica MI 318J COMCAST IP PHONE, LLC 340   2011-08-26   
586-803 3 Utica MI 318J COMCAST IP PHONE, LLC 340   2007-07-12   
586-806 5 Center Line MI 318J COMCAST IP PHONE, LLC 340   2007-02-05   
586-806 6 Center Line MI 318J COMCAST IP PHONE, LLC 340   2007-02-05   
586-837 1 Utica MI 318J COMCAST IP PHONE, LLC 340   2022-07-30   
586-837 2 Utica MI 318J COMCAST IP PHONE, LLC 340   2022-07-30   
586-843 3 Utica MI 318J COMCAST IP PHONE, LLC 340   2006-06-22   
586-846 2 Mount Clemens MI 318J COMCAST IP PHONE, LLC 340   2011-10-24   
586-846 3 Mount Clemens MI 318J COMCAST IP PHONE, LLC 340   2011-12-06   
586-846 4 Mount Clemens MI 318J COMCAST IP PHONE, LLC 340   2013-08-12   
586-871 2 Roseville MI 318J COMCAST IP PHONE, LLC 340   2006-11-29   
586-872 2 Roseville MI 318J COMCAST IP PHONE, LLC 340   2006-11-29   
586-879 0 Roseville MI 318J COMCAST IP PHONE, LLC 340   2006-11-29   
586-879 6 Roseville MI 318J COMCAST IP PHONE, LLC 340   2004-01-06   
586-883 A Warren MI 318J COMCAST IP PHONE, LLC 340      
586-883 6 Warren MI 318J COMCAST IP PHONE, LLC 340      
586-883 7 Warren MI 318J COMCAST IP PHONE, LLC 340      
586-883 9 Warren MI 318J COMCAST IP PHONE, LLC 340      
586-884 4 Utica MI 318J COMCAST IP PHONE, LLC 340   2014-02-27   
586-884 6 Utica MI 318J COMCAST IP PHONE, LLC 340   2006-01-05   
586-920 2 Center Line MI 318J COMCAST IP PHONE, LLC 340   2011-12-06   
586-930 1 Utica MI 318J COMCAST IP PHONE, LLC 340   2014-09-28   
586-948 8 Mount Clemens MI 318J COMCAST IP PHONE, LLC 340   2006-10-04   
586-948 9 Mount Clemens MI 318J COMCAST IP PHONE, LLC 340   2006-10-04   
586-961 6 Mount Clemens MI 318J COMCAST IP PHONE, LLC 340   2012-10-26   
586-983 9 Warren MI 318J COMCAST IP PHONE, LLC 340   2012-09-05   
586-991 5 Utica MI 318J COMCAST IP PHONE, LLC 340   2012-01-06   
586-991 6 Utica MI 318J COMCAST IP PHONE, LLC 340   2006-06-22   
586-991 7 Utica MI 318J COMCAST IP PHONE, LLC 340   2013-10-06   
586-992 6 Washington MI 318J COMCAST IP PHONE, LLC 340   2014-08-01   
586-999 5 Warren MI 318J COMCAST IP PHONE, LLC 340   2015-09-21   
734-212 3 Manchester MI 318J COMCAST IP PHONE, LLC 340   2005-11-15   

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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