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: 254

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-254 A Petoskey MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348      
231-254 0 Petoskey MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2020-11-19   
231-254 1 Petoskey MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2020-11-19   
231-254 2 Petoskey MI WYNGMIKAGT2  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 348   2020-11-19   
231-254 3 Petoskey MI GDRPMIBL31Z  5562 METROPCS, INC. 348   2021-03-14   
231-254 4 Petoskey MI GDRPMIBL31Z  5562 METROPCS, INC. 348   2021-03-14   
231-254 5 Petoskey MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2020-06-28   
231-254 6 Petoskey MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2019-12-26   
231-254 7 Petoskey MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2019-12-26   
231-254 8 Petoskey MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2019-12-26   
231-254 9 Petoskey MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2019-12-26   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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