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: 356

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
906-356 A Rock MI ROCKMIMNRSA  9323 MICHIGAN BELL TEL CO 342      
906-356 0 Rock MI   543C ONVOY, LLCV - MI 342   2020-09-12   
906-356 1 Rock MI   2550 123.NET, LLC 342   2004-10-29   
906-356 2 Rock MI   792K CHARTER IP ENABLED SERVICES, LLC 342   2007-09-29   
906-356 3 Rock MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 342   2005-03-19   
906-356 4 Rock MI   624H ONVOY SPECTRUM, LLC 342   2024-07-29   
906-356 5 Rock MI   116F PENINSULA FIBER NETWORK, LLC - MI 342   2013-09-28   
906-356 6 Rock MI   9323 MICHIGAN BELL TEL CO 342      
906-356 7 Rock MI   508J CENTURYLINK COMMUNICATIONS, LLC 342   2018-03-13   
906-356 8 Rock MI   543C ONVOY, LLCV - MI 342   2018-11-15   
906-356 9 Rock MI   543C ONVOY, LLCV - MI 342   2019-01-25   

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

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