Local Calling Guide

Area code/prefix search

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NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX: 408

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-408 A Big Rapids MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-408 0 Big Rapids MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348      
231-408 1 Big Rapids MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2005-06-04   
231-408 2 Big Rapids MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2005-06-19   
231-408 3 Big Rapids MI GDRQMIBODS0  7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 348   2005-09-03   
231-408 4 Big Rapids MI GDRPMIBL31Z  5562 METROPCS, INC. 348   2005-12-18   
231-408 5 Big Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2016-03-14   
231-408 6 Big Rapids MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2016-03-14   
231-408 7 Big Rapids MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2007-03-01   
231-408 8 Big Rapids MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2007-03-01   
231-408 9 Big Rapids MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2021-03-26   

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

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