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: 797

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-797 A Hillsdale MI LNNGMIMN16Z  829J PAETEC ITEL, LLC 346      
517-797 0 Hillsdale MI   543C ONVOY, LLCV - MI 346   2021-03-05   
517-797 1 Hillsdale MI   543C ONVOY, LLCV - MI 346   2013-01-30   
517-797 2 Hillsdale MI   829J PAETEC ITEL, LLC 346   2013-08-30   
517-797 3 Hillsdale MI   543C ONVOY, LLCV - MI 346   2012-02-22   
517-797 4 Hillsdale MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346   2003-05-21   
517-797 5 Hillsdale MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346   2005-12-29   
517-797 6 Hillsdale MI   516C AT&T CORP. 346   2011-09-30   
517-797 7 Hillsdale MI   145J TERRA NOVA TELECOM INC. 346   2025-01-08   
517-797 8 Hillsdale MI   829J PAETEC ITEL, LLC 346   2005-04-11   

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

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