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: 910

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-910 A Onondaga MI LNNGMIVE2MD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346      
517-910 1 Onondaga MI   543C ONVOY, LLCV - MI 346   2021-03-05   
517-910 2 Onondaga MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 346   2017-02-27   
517-910 3 Onondaga MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2009-09-26   
517-910 4 Onondaga MI   961J WOW! INTERNET, CABLE AND PHONE 346   2012-05-20   
517-910 5 Onondaga MI   543C ONVOY, LLCV - MI 346   2021-03-05   
517-910 6 Onondaga MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346   2006-03-17   
517-910 7 Onondaga MI   543C ONVOY, LLCV - MI 346   2013-04-05   
517-910 8 Onondaga MI   624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-910 9 Onondaga MI   543C ONVOY, LLCV - MI 346   2023-07-30   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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