Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 320 [Rate centres in NPA 320] [Dial plan for NPA 320]

NXX: 410

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-410 A Askov MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628      
320-410 0 Askov MN   145J TERRA NOVA TELECOM INC. 628   2025-07-04   
320-410 2 Askov MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628   2021-11-01   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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