Local Calling Guide

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NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-667 2 Marion MI   543C ONVOY, LLCV - MI 348   2015-08-02   
231-667 3 Marion MI   3535 ACD TELECOM, INC. - MI 348   2005-02-17   
231-667 4 Marion MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2011-04-06   
231-667 5 Marion MI   543C ONVOY, LLCV - MI 348   2016-04-11   
231-667 6 Marion MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 348   2016-03-21   
231-667 7 Marion MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2008-12-07   
231-667 8 Marion MI   829J PAETEC ITEL, LLC 348   2004-02-10   
231-667 9 Marion MI   543C ONVOY, LLCV - MI 348   2016-04-11   
231-668 A Traverse City MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-668 0 Traverse City MI   829J PAETEC ITEL, LLC 348   2003-12-01   
231-668 1 Traverse City MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2004-07-12   
231-668 2 Traverse City MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2004-07-12   
231-668 3 Traverse City MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2004-08-15   
231-668 4 Traverse City MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-668 5 Traverse City MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2016-04-12   
231-668 6 Traverse City MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2006-08-10   
231-668 7 Traverse City MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2005-07-01   
231-668 8 Traverse City MI   543C ONVOY, LLCV - MI 348   2010-03-27   
231-668 9 Traverse City MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2007-05-02   
231-670 A Muskegon MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-670 0 Muskegon MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-670 1 Muskegon MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-670 2 Muskegon MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-670 3 Muskegon MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-670 4 Muskegon MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-670 5 Muskegon MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-670 6 Muskegon MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-670 7 Muskegon MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-670 8 Muskegon MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2025-01-12   
231-670 9 Muskegon MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-672 A Muskegon MI GDRPMIBL06Z  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
231-672 0 Muskegon MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2011-03-07   
231-672 1 Muskegon MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2006-01-12   
231-672 2 Muskegon MI   0695 FRONTIER NORTH, INC. - MI 348   2005-11-17   
231-672 3 Muskegon MI   0695 FRONTIER NORTH, INC. - MI 348   2005-11-17   
231-672 4 Muskegon MI   0695 FRONTIER NORTH, INC. - MI 348   2005-11-17   
231-672 5 Muskegon MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2008-03-07   
231-672 6 Muskegon MI   0695 FRONTIER NORTH, INC. - MI 348   2005-11-17   
231-672 7 Muskegon MI   0695 FRONTIER NORTH, INC. - MI 348   2005-11-17   
231-672 8 Muskegon MI   0695 FRONTIER NORTH, INC. - MI 348   2005-11-17   
231-672 9 Muskegon MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
231-674 A Grant MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-674 0 Grant MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-674 1 Grant MI   543C ONVOY, LLCV - MI 348   2012-12-30   
231-674 2 Grant MI   516C AT&T CORP. 348   2011-01-31   
231-674 3 Grant MI   543C ONVOY, LLCV - MI 348   2012-06-01   
231-674 4 Grant MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2004-07-17   
231-674 5 Grant MI   991E BANDWIDTH.COM CLEC, LLC - MI 348   2014-09-01   
231-674 6 Grant MI   508J CENTURYLINK COMMUNICATIONS, LLC 348   2015-09-15   
231-674 7 Grant MI   543C ONVOY, LLCV - MI 348   2014-10-13   

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

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