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: 636

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-636 A Howard City MI GDRPMIBLX8Z  2550 123.NET, LLC 348      
231-636 0 Howard City MI GDRPMIBLX8Z  2550 123.NET, LLC 348      
231-636 1 Howard City MI GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348      
231-636 2 Howard City MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-636 3 Howard City MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-636 4 Howard City MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-636 5 Howard City MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-636 7 Howard City MI TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348      
231-636 8 Howard City MI MSKGMIXKQMD  624H ONVOY SPECTRUM, LLC 348      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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