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: 543

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-543 A Howard Lake MN HWLKMNXHRS0  1456 CENTURYLINK OF MINNESOTA, INC. 628      
320-543 0 Howard Lake MN   1456 CENTURYLINK OF MINNESOTA, INC. 628      
320-543 1 Howard Lake MN   1456 CENTURYLINK OF MINNESOTA, INC. 628      
320-543 2 Howard Lake MN   1456 CENTURYLINK OF MINNESOTA, INC. 628      
320-543 3 Howard Lake MN   1456 CENTURYLINK OF MINNESOTA, INC. 628      
320-543 4 Howard Lake MN   1456 CENTURYLINK OF MINNESOTA, INC. 628      
320-543 5 Howard Lake MN   184D ONVOY, LLC - MN 628   2006-03-04   
320-543 6 Howard Lake MN   980E BANDWIDTH.COM CLEC, LLC - MN 628   2008-11-30   
320-543 9 Howard Lake MN   1456 CENTURYLINK OF MINNESOTA, INC. 628      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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