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: 460

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-460 A Big Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-460 2 Big Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-07-08   
231-460 3 Big Rapids MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2006-06-18   
231-460 6 Big Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2015-10-09   
231-460 9 Big Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-08-12   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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