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: 307

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-307 A Hayfield MN ROCHMNROTMD  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 620      
507-307 0 Hayfield MN OWTNMNOWTMD  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620   2010-05-14   
507-307 2 Hayfield MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2019-09-12   
507-307 3 Hayfield MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2019-09-12   
507-307 4 Hayfield MN ROCHMNROTMD  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 620   2005-02-18   
507-307 5 Hayfield MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2020-10-05   
507-307 7 Hayfield MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2015-01-02   
507-307 8 Hayfield MN ROCHMNROXRX  073H TELNYX LLC 620   2020-07-19   
507-307 9 Hayfield MN ROCHMNROX0X  980E BANDWIDTH.COM CLEC, LLC - MN 620   2008-11-30   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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