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: 732

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-732 A Morley MI GDRPMIBL36Z  624H ONVOY SPECTRUM, LLC 348      
231-732 3 Morley MI GDRPMIBL36Z  624H ONVOY SPECTRUM, LLC 348   2021-06-20   
231-732 6 Morley MI GDRPMIBL06Z  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348   2022-11-07   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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