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: 406

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-406 A Glenville MN ROCHMNROUMD  184D ONVOY, LLC - MN 620      
507-406 0 Glenville MN   184D ONVOY, LLC - MN 620      
507-406 4 Glenville MN ROCHMNROUMD  184D ONVOY, LLC - MN 620      
507-406 7 Glenville MN   114J EXIANT COMMUNICATIONS LLC 620   2026-10-29   

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

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