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: 668

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-668 A De Witt MI DWTTMIXGDS0  0695 FRONTIER NORTH, INC. - MI 346      
517-668 0 De Witt MI   0695 FRONTIER NORTH, INC. - MI 346      
517-668 1 De Witt MI   0695 FRONTIER NORTH, INC. - MI 346      
517-668 2 De Witt MI   0695 FRONTIER NORTH, INC. - MI 346      
517-668 3 De Witt MI   0695 FRONTIER NORTH, INC. - MI 346      
517-668 4 De Witt MI   817J INTERACTIVE SERVICES NETWORK, INC. 346   2005-09-03   
517-668 5 De Witt MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2004-12-31   
517-668 6 De Witt MI   318J COMCAST IP PHONE, LLC 346   2007-06-26   
517-668 7 De Witt MI   2550 123.NET, LLC 346   2005-02-27   
517-668 8 De Witt MI   0695 FRONTIER NORTH, INC. - MI 346      
517-668 9 De Witt MI   0695 FRONTIER NORTH, INC. - MI 346      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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