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: 753

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-753 A Silver Lake MN OSSEMNXODMD  593K MCC TELEPHONY LLC 628      
320-753 0 Silver Lake MN   184D ONVOY, LLC - MN 628   2017-05-29   
320-753 1 Silver Lake MN   073H TELNYX LLC 628   2020-07-23   
320-753 3 Silver Lake MN   184D ONVOY, LLC - MN 628   2015-06-20   
320-753 4 Silver Lake MN   184D ONVOY, LLC - MN 628   2021-03-11   
320-753 5 Silver Lake MN   5256 LEVEL 3 COMMUNICATIONS, LLC - MN 628   2023-02-25   
320-753 6 Silver Lake MN   593K MCC TELEPHONY LLC 628   2010-07-11   
320-753 7 Silver Lake MN   508J CENTURYLINK COMMUNICATIONS, LLC 628   2014-11-18   

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

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