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: 284

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-284 A Manistee MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-284 0 Manistee MI   116F PENINSULA FIBER NETWORK, LLC - MI 348   2021-07-22   
231-284 1 Manistee MI   5562 METROPCS, INC. 348   2021-10-15   
231-284 2 Manistee MI   543C ONVOY, LLCV - MI 348   2021-05-10   
231-284 3 Manistee MI   624H ONVOY SPECTRUM, LLC 348   2021-06-19   
231-284 4 Manistee MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2024-12-13   
231-284 5 Manistee MI   145J TERRA NOVA TELECOM INC. 348   2024-02-15   
231-284 6 Manistee MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2021-06-06   
231-284 7 Manistee MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2021-06-06   
231-284 8 Manistee MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2021-06-06   
231-284 9 Manistee MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2021-04-15   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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