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: 265

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-265 A Coral MI   792K CHARTER IP ENABLED SERVICES, LLC 348      
231-265 0 Coral MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 348   2015-12-21   
231-265 1 Coral MI   792K CHARTER IP ENABLED SERVICES, LLC 348   2014-07-03   
231-265 2 Coral MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 348   2019-06-19   
231-265 3 Coral MI   543C ONVOY, LLCV - MI 348   2016-03-23   
231-265 4 Coral MI   543C ONVOY, LLCV - MI 348   2016-03-23   
231-265 5 Coral MI   543C ONVOY, LLCV - MI 348   2021-04-25   
231-265 6 Coral MI   543C ONVOY, LLCV - MI 348   2021-07-11   
231-265 7 Coral MI   508J CENTURYLINK COMMUNICATIONS, LLC 348   2015-09-17   
231-265 8 Coral MI   543C ONVOY, LLCV - MI 348   2014-10-25   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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