Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 616 [Rate centres in NPA 616] [Dial plan for NPA 616]

NXX: 305

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
616-305 A Byron Center MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
616-305 0 Byron Center MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2025-06-30   
616-305 2 Byron Center MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-09-16   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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