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: 376

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-376 A Howell MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340      
517-376 0 Howell MI   5562 METROPCS, INC. 340   2003-08-02   
517-376 1 Howell MI   5562 METROPCS, INC. 340   2003-08-02   
517-376 2 Howell MI   5562 METROPCS, INC. 340   2004-05-14   
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   
517-376 5 Howell MI   829J PAETEC ITEL, LLC 340   2005-08-13   
517-376 6 Howell MI   318J COMCAST IP PHONE, LLC 340      
517-376 8 Howell MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2010-08-06   
517-376 9 Howell MI   792K CHARTER IP ENABLED SERVICES, LLC 340   2007-02-25   

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

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