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: 380

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-380 A Newaygo MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-380 0 Newaygo MI BRSPMI09FMD  145J TERRA NOVA TELECOM INC. 348   2024-02-14   
231-380 1 Newaygo MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-08-12   
231-380 3 Newaygo MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2022-04-17   
231-380 8 Newaygo MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2022-02-24   
231-380 9 Newaygo MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2022-02-24   

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

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