Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-436 A Mackinaw City MI MCCYMIMNRSA  9323 AMERITECH MICHIGAN 348      
231-436 0 Mackinaw City MI   3535 ACD TELECOM, INC. - MI 348   2005-02-11   
231-436 1 Mackinaw City MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2004-07-17   
231-436 2 Mackinaw City MI   0975 LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - MI 348   2004-02-10   
231-436 3 Mackinaw City MI   1200 TALK AMERICA INC. - MI 348   2006-01-11   
231-436 4 Mackinaw City MI   9323 AMERITECH MICHIGAN 348      
231-436 5 Mackinaw City MI   9323 AMERITECH MICHIGAN 348      
231-436 6 Mackinaw City MI   351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2008-05-15   
231-436 7 Mackinaw City MI   9323 AMERITECH MICHIGAN 348      
231-436 8 Mackinaw City MI   9323 AMERITECH MICHIGAN 348      
231-436 9 Mackinaw City MI   9323 AMERITECH MICHIGAN 348      

Last updated: Sat, 27 Jul 2019 10:59:49 UTC

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