Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 507 [Rate centres in NPA 507] [Dial plan for NPA 507]

NXX: 574

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-574 A Adams MN OWTNMNOWTMD  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620      
507-574 1 Adams MN OWTNMNOWTMD  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620   2010-05-30   
507-574 2 Adams MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2020-11-02   
507-574 3 Adams MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2020-11-02   
507-574 4 Adams MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2019-09-11   
507-574 5 Adams MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2019-09-11   
507-574 7 Adams MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2014-12-31   

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

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