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: 366

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-366 A Northfield MN ROCHMNROUMD  184D ONVOY, LLC - MN 620      
507-366 1 Northfield MN ROCHMNROUMD  184D ONVOY, LLC - MN 620      
507-366 6 Northfield MN   145J TERRA NOVA TELECOM INC. 620   2025-09-01   
507-366 8 Northfield MN ROCHMNROX0X  980E BANDWIDTH.COM CLEC, LLC - MN 620   2021-06-04   
507-366 9 Northfield MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2012-09-25   

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

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