Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 906 [Rate centres in NPA 906] [Dial plan for NPA 906]

NXX: 379

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
906-379 A Sault Ste Marie MI MRQTMIMNCMD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 342      
906-379 0 Sault Ste Marie MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 342      
906-379 1 Sault Ste Marie MI   2550 123.NET, LLC 342   2004-10-29   
906-379 2 Sault Ste Marie MI   543C ONVOY, LLCV - MI 342   2017-10-30   
906-379 3 Sault Ste Marie MI   543C ONVOY, LLCV - MI 342   2017-10-30   
906-379 4 Sault Ste Marie MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 342   2005-03-19   
906-379 5 Sault Ste Marie MI   543C ONVOY, LLCV - MI 342   2017-10-30   
906-379 6 Sault Ste Marie MI   746G UPPER PENINSULA TELEPHONE COMPANY - MI 342   2017-01-09   
906-379 7 Sault Ste Marie MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342   2014-10-16   
906-379 8 Sault Ste Marie MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342   2014-10-16   
906-379 9 Sault Ste Marie MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 342      

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

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