Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
313-859 4 Detroit Zone 5 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-879 A Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-879 0 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-06-03   
313-879 1 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2005-06-03   
313-879 2 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2005-06-03   
313-879 3 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2005-06-03   
313-879 4 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-879 5 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2004-08-27   
313-887 A Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-887 0 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-887 1 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-887 3 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-887 4 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-887 5 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-887 6 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-887 7 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-887 8 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-887 9 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-908 5 Detroit Zone 6 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2008-07-17   
313-908 6 Detroit Zone 6 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2008-07-17   
313-915 3 Detroit Zone 4 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2005-04-15   
313-915 4 Detroit Zone 4 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2003-01-12   
313-915 5 Detroit Zone 4 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2005-04-15   
313-918 1 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2008-07-25   
313-924 1 Detroit Zone 2 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-09-05   
313-924 3 Detroit Zone 2 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-09-05   
313-924 4 Detroit Zone 2 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-09-05   
313-925 3 Detroit Zone 2 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2010-12-10   
313-925 7 Detroit Zone 2 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2010-11-19   
313-960 4 Detroit Zone 1 MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2014-09-21   
517-215 7 Adrian MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2010-06-05   
517-292 7 Howell MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2008-05-13   
517-301 2 Tecumseh MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-11-01   
517-301 6 Tecumseh MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2013-02-08   
517-306 2 Hudson MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2004-11-14   
517-306 9 Hudson MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2008-09-17   
517-366 2 Adrian MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2012-02-23   
517-376 3 Howell MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2005-02-02   
517-376 4 Howell MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2003-03-22   
517-431 7 Tipton MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-11-28   
517-579 A Howell MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
517-579 0 Howell MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
517-579 4 Howell MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
517-579 6 Howell MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
517-579 7 Howell MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
517-579 8 Howell MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
517-618 A Howell MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
517-618 0 Howell MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
517-618 9 Howell MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
517-662 3 Adrian MI 6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2014-02-08   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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