Local Calling Guide

Area code/prefix search

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NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX: 331

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-331 A Alden MI ALDNMIXHRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-331 0 Alden MI GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348      
231-331 1 Alden MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-331 2 Alden MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-331 3 Alden MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348      
231-331 4 Alden MI ALDNMIXHRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-331 5 Alden MI ANTSMIADPS0  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348      
231-331 6 Alden MI ALDNMIXHRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-331 7 Alden MI ALDNMIXHRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-331 8 Alden MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-331 9 Alden MI TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348      

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

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