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: 545

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-545 A Boyne Falls MI GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348      
231-545 0 Boyne Falls MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-545 1 Boyne Falls MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-545 2 Boyne Falls MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-545 3 Boyne Falls MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-545 4 Boyne Falls MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-545 5 Boyne Falls MI GDRPMIBL36Z  624H ONVOY SPECTRUM, LLC 348      
231-545 9 Boyne Falls MI GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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