Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

NXX: 456

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-456 A Clinton MI CLTNMIXGRS0  0695 FRONTIER NORTH, INC. - MI 340      
517-456 0 Clinton MI   3535 ACD TELECOM, INC. - MI 340   2005-07-21   
517-456 1 Clinton MI   0695 FRONTIER NORTH, INC. - MI 340      
517-456 2 Clinton MI   0695 FRONTIER NORTH, INC. - MI 340      
517-456 3 Clinton MI   817J INTERACTIVE SERVICES NETWORK, INC. 340   2005-09-03   
517-456 4 Clinton MI   0695 FRONTIER NORTH, INC. - MI 340      
517-456 5 Clinton MI   318J COMCAST IP PHONE, LLC 340   2007-06-26   
517-456 6 Clinton MI   0695 FRONTIER NORTH, INC. - MI 340      
517-456 7 Clinton MI   0695 FRONTIER NORTH, INC. - MI 340      
517-456 8 Clinton MI   0695 FRONTIER NORTH, INC. - MI 340      
517-456 9 Clinton MI   0695 FRONTIER NORTH, INC. - MI 340      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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