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
313-450 6 Detroit Zone 5 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-457 A Detroit Zone 6 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-457 0 Detroit Zone 6 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-457 1 Detroit Zone 6 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-457 2 Detroit Zone 6 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-462 1 Detroit Zone 1 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2011-01-31   
313-486 6 Detroit Zone 5 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-05-06   
313-486 7 Detroit Zone 5 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-05-06   
313-486 8 Detroit Zone 5 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-05-06   
313-556 1 Detroit Zone 1 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2008-09-21   
313-556 2 Detroit Zone 1 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2008-09-21   
313-557 A Detroit Zone 1 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-564 1 Detroit Zone 3 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2009-04-21   
313-615 2 Detroit Zone 6 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2006-10-05   
313-615 3 Detroit Zone 6 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2006-10-05   
313-651 A Detroit Zone 4 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-651 3 Detroit Zone 4 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-04-25   
313-725 A Detroit Zone 1 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-725 3 Detroit Zone 1 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2011-01-31   
313-725 5 Detroit Zone 1 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2011-01-31   
313-731 A Detroit Zone 3 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-731 0 Detroit Zone 3 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-731 1 Detroit Zone 3 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-731 3 Detroit Zone 3 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-05-06   
313-731 4 Detroit Zone 3 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-05-06   
313-731 5 Detroit Zone 3 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-05-06   
313-731 9 Detroit Zone 3 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-732 A Detroit Zone 2 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-732 9 Detroit Zone 2 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-733 A Detroit Zone 3 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-733 1 Detroit Zone 3 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-733 2 Detroit Zone 3 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2006-07-06   
313-733 3 Detroit Zone 3 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-736 A Detroit Zone 4 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-736 4 Detroit Zone 4 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-743 A Detroit Zone 2 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-743 0 Detroit Zone 2 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-743 9 Detroit Zone 2 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-748 A Detroit Zone 1 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-748 1 Detroit Zone 1 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-748 4 Detroit Zone 1 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-748 6 Detroit Zone 1 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-748 7 Detroit Zone 1 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-748 9 Detroit Zone 1 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-749 A Detroit Zone 6 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-749 0 Detroit Zone 6 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-749 1 Detroit Zone 6 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-749 2 Detroit Zone 6 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-749 3 Detroit Zone 6 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-749 4 Detroit Zone 6 MI 7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      

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

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