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: 371

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-371 A Tustin MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348      
231-371 0 Tustin MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348      
231-371 1 Tustin MI   145J TERRA NOVA TELECOM INC. 348      
231-371 2 Tustin MI GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348      

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

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