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: 441

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-441 A Willmar MN STCDMNTOX3X  184D ONVOY, LLC - MN 626      
320-441 0 Willmar MN STCDMNTOX3X  184D ONVOY, LLC - MN 626      
320-441 1 Willmar MN STCDMNTOX3X  184D ONVOY, LLC - MN 626      
320-441 2 Willmar MN   792K CHARTER IP ENABLED SERVICES, LLC 626   2012-07-16   
320-441 4 Willmar MN STCDMNTOX3X  184D ONVOY, LLC - MN 626   2011-11-18   
320-441 5 Willmar MN STCDMNTOX3X  184D ONVOY, LLC - MN 626      
320-441 6 Willmar MN STCDMNTOX3X  184D ONVOY, LLC - MN 626      
320-441 7 Willmar MN STCDMNTOX3X  184D ONVOY, LLC - MN 626      
320-441 8 Willmar MN STCDMNTOXQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 626   2010-12-13   
320-441 9 Willmar MN STCDMNTOX7Y  5816 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 626   2011-09-23   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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