Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 989 [Rate centres in NPA 989] [Dial plan for NPA 989]

NXX: 584

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-584 A Carson City MI CRCYMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      
989-584 0 Carson City MI   0695 FRONTIER NORTH, INC. - MI 344      
989-584 1 Carson City MI   543C ONVOY, LLCV - MI 344   2013-03-15   
989-584 2 Carson City MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 344   2012-09-03   
989-584 3 Carson City MI   0695 FRONTIER NORTH, INC. - MI 344      
989-584 4 Carson City MI   2550 123.NET, LLC 344   2003-03-08   
989-584 5 Carson City MI   3535 ACD TELECOM, INC. - MI 344   2011-09-05   
989-584 6 Carson City MI   0695 FRONTIER NORTH, INC. - MI 344      
989-584 7 Carson City MI   691A DAYSTARR, LLC DBA DAYSTARR COMMUNICATIONS - MI 344   2005-09-19   
989-584 8 Carson City MI   0127 WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 344   2006-09-29   
989-584 9 Carson City MI   508J CENTURYLINK COMMUNICATIONS, LLC 344   2016-02-25   

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

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