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: 707

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-707 A Newaygo MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-707 0 Newaygo MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2017-04-06   
231-707 1 Newaygo MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2021-03-26   
231-707 2 Newaygo MI   543C ONVOY, LLCV - MI 348   2020-11-14   
231-707 3 Newaygo MI   543C ONVOY, LLCV - MI 348   2020-11-14   
231-707 5 Newaygo MI   5562 METROPCS, INC. 348   2021-10-15   
231-707 6 Newaygo MI   624H ONVOY SPECTRUM, LLC 348   2021-06-20   
231-707 7 Newaygo MI   543C ONVOY, LLCV - MI 348   2016-04-25   
231-707 8 Newaygo MI   543C ONVOY, LLCV - MI 348   2016-04-25   
231-707 9 Newaygo MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2022-01-19   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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