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: 413

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-413 A Kalkaska MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-413 0 Kalkaska MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2023-08-12   
231-413 1 Kalkaska MI GDRQMIBODMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 348   2023-08-07   
231-413 8 Kalkaska MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2022-04-17   
231-413 9 Kalkaska MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2022-04-17   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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