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: 871

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-871 A Beulah MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-871 0 Beulah MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-871 1 Beulah MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2009-08-20   
231-871 2 Beulah MI GDRPMIBL41Z  506J TWILIO INTERNATIONAL INC 348   2021-07-26   
231-871 3 Beulah MI GDRPMIBL36Z  624H ONVOY SPECTRUM, LLC 348   2021-06-18   
231-871 7 Beulah MI   145J TERRA NOVA TELECOM INC. 348   2022-06-03   
231-871 8 Beulah MI GDRPMIBLCM5  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2019-07-29   

Last updated: Tue, 24 Jan 2023 03:01:57 UTC

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