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: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-579 A Tyler MN OWTNMNOWTMD  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620      
507-579 0 Tyler MN   184D ONVOY, LLC - MN 620   2017-05-29   
507-579 1 Tyler MN   719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620   2010-05-30   
507-579 5 Tyler MN   184D ONVOY, LLC - MN 620   2020-11-07   
507-579 7 Tyler MN   184D ONVOY, LLC - MN 620   2015-01-05   
507-579 8 Tyler MN   073H TELNYX LLC 620   2020-07-23   
507-579 9 Tyler MN   624H ONVOY SPECTRUM, LLC 620   2021-10-23   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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