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: 359

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-359 A Mecosta MI GFTPMIEF2MD  792K CHARTER IP ENABLED SERVICES, LLC 348      
231-359 0 Mecosta MI GDRPMIBL36Z  624H ONVOY SPECTRUM, LLC 348   2021-11-22   
231-359 1 Mecosta MI GFTPMIEF2MD  792K CHARTER IP ENABLED SERVICES, LLC 348      
231-359 2 Mecosta MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-05-09   
231-359 3 Mecosta MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-05-09   
231-359 4 Mecosta MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2020-05-09   
231-359 5 Mecosta MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-03-06   
231-359 6 Mecosta MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2021-03-06   
231-359 7 Mecosta MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2015-09-18   
231-359 9 Mecosta MI GDRPMIBL36Z  624H ONVOY SPECTRUM, LLC 348   2021-11-22   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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