Local Calling Guide

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

NXX: 788

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-788 A Muskegon MI WLKMMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-788 0 Muskegon MI WLKMMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-788 1 Muskegon MI WLKMMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-788 2 Muskegon MI WLKMMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-788 3 Muskegon MI WLKMMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-788 4 Muskegon MI WLKMMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-788 5 Muskegon MI WLKMMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-788 6 Muskegon MI WLKMMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-788 7 Muskegon MI WLKMMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-788 8 Muskegon MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2012-12-31   
231-788 9 Muskegon MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2015-12-17   

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

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