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: 383

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-383 A Beulah MI GDRPMIBLCM5  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-383 0 Beulah MI GDRPMIBLCM5  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-383 1 Beulah MI GDRPMIBLCM5  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348      
231-383 2 Beulah MI GDRPMIBLCM5  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2006-02-04   
231-383 3 Beulah MI GDRPMIBLCM5  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2007-01-18   
231-383 4 Beulah MI GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348   2007-02-25   
231-383 5 Beulah MI GDRPMIBLCM5  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2011-05-14   
231-383 6 Beulah MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348   2012-07-06   
231-383 7 Beulah MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2012-12-29   
231-383 8 Beulah MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2013-04-01   
231-383 9 Beulah MI GDRPMIBL06Z  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348   2020-08-24   

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

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