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: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
906-421 A Skandia MI MNSGMIXJDS2  116F PENINSULA FIBER NETWORK, LLC - MI 342      
906-421 0 Skandia MI MNSGMIXJDS2  116F PENINSULA FIBER NETWORK, LLC - MI 342   2013-11-23   
906-421 1 Skandia MI   792K CHARTER IP ENABLED SERVICES, LLC 342   2018-05-14   
906-421 2 Skandia MI HNCCMIMN3MD  543C ONVOY, LLCV - MI 342   2021-03-27   
906-421 3 Skandia MI MRQTMIMNX2X  624H ONVOY SPECTRUM, LLC 342   2024-08-05   
906-421 4 Skandia MI HNCCMIMN3MD  543C ONVOY, LLCV - MI 342   2020-06-08   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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