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: 373

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
906-373 A Big Bay MI PRKNMIATPMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342      
906-373 2 Big Bay MI   543C ONVOY, LLCV - MI 342   2019-04-29   
906-373 3 Big Bay MI   543C ONVOY, LLCV - MI 342   2019-01-25   
906-373 4 Big Bay MI   543C ONVOY, LLCV - MI 342   2021-02-03   
906-373 5 Big Bay MI   543C ONVOY, LLCV - MI 342   2021-02-03   
906-373 6 Big Bay MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342   2015-06-19   
906-373 7 Big Bay MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342   2017-11-15   
906-373 8 Big Bay MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 342   2005-03-19   
906-373 9 Big Bay MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 342      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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