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: 885

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-885 A Butterfield MN ROCHMNROUMD  184D ONVOY, LLC - MN 620      
507-885 5 Butterfield MN ROCHMNROUMD  184D ONVOY, LLC - MN 620   2021-03-06   
507-885 6 Butterfield MN ROCHMNROXQX  624H ONVOY SPECTRUM, LLC 620   2021-06-21   
507-885 8 Butterfield MN   145J TERRA NOVA TELECOM INC. 620   2025-08-30   

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

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