Local Calling Guide

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Williamston, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
517-655 A WMTNMIXGDS0  0695 FRONTIER NORTH, INC. - MI 346      
517-717 A   817J INTERACTIVE SERVICES NETWORK, INC. 346      
517-992 A LNNGMIMNX3Y  2550 123.NET, LLC 346      
517-992 0 LNNGMIMNX3Y  2550 123.NET, LLC 346   2003-04-20   
517-992 1 LNNGMIMNX4Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2004-12-31   
517-992 2   145J TERRA NOVA TELECOM INC. 346   2025-05-31   
517-992 3 LNNGMIMNX8Z  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 346   2016-09-06   
517-992 4 LNNGMIMN02Z  318J COMCAST IP PHONE, LLC 346   2008-12-26   
517-992 5 LNNGMIVE2MD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346   2009-12-07   
517-992 6 LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2011-01-08   
517-992 7 LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2013-04-05   
517-992 8 LNNGMIMN00Z  624H ONVOY SPECTRUM, LLC 346   2021-06-17   
517-992 9 LNNGMIVE2MD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346   2007-07-26   
517-996 A MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-996 0 LNNGMIMNX4Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2020-11-08   
517-996 1 LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2021-03-05   
517-996 2 LNNGMIMNX4Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2009-09-26   
517-996 3 MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-996 4 MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-996 5 LNNGMIMNXQZ  508J CENTURYLINK COMMUNICATIONS, LLC 346   2016-01-27   
517-996 6 LNNGMIMN15Z  961J WOW! INTERNET, CABLE AND PHONE 346   2012-05-20   
517-996 7 MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-996 8 LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2021-03-05   
517-996 9   991E BANDWIDTH.COM CLEC, LLC - MI 346   2025-10-18   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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