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: 446

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-446 A Stewart MN OSSEMNXODMD  593K MCC TELEPHONY LLC 628      
320-446 0 Stewart MN MPLSMNCDZMD  073H TELNYX LLC 628   2020-07-23   
320-446 3 Stewart MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628   2019-10-28   
320-446 4 Stewart MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628   2015-06-20   
320-446 5 Stewart MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628   2021-03-11   
320-446 6 Stewart MN OSSEMNXODMD  593K MCC TELEPHONY LLC 628   2010-07-11   
320-446 7 Stewart MN MPLSMNFD2MD  508J CENTURYLINK COMMUNICATIONS, LLC 628   2014-11-18   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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