Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Concord, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
517-524 A CNCRMIXJDS0  4417 FRONTIER COMMUNICATIONS OF MICHIGAN, INC. 346      
517-895 A MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-895 0   624H ONVOY SPECTRUM, LLC 346   2024-05-03   
517-895 1 LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2021-07-28   
517-895 2 LNNGMIMNX8Z  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 346   2016-02-15   
517-895 3 MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-895 4 LNNGMIMN02Z  318J COMCAST IP PHONE, LLC 346   2008-12-28   
517-895 5 LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2021-07-28   
517-895 6 LNNGMIMNXJZ  668E SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 346   2012-05-20   
517-895 8 LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2018-10-12   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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