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: 404

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-404 A Sunburg MN STCDMNTOXXX  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 626      
320-404 0 Sunburg MN STCDMNTOX3X  184D ONVOY, LLC - MN 626   2023-09-03   
320-404 1 Sunburg MN STCDMNTOXXX  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 626   2010-08-07   
320-404 2 Sunburg MN STCDMNTOX3X  184D ONVOY, LLC - MN 626   2021-03-11   
320-404 3 Sunburg MN STCDMNTOX3X  184D ONVOY, LLC - MN 626   2021-04-07   
320-404 4 Sunburg MN STCDMNTOX3X  184D ONVOY, LLC - MN 626   2020-05-26   
320-404 5 Sunburg MN STCDMNTOXNX  624H ONVOY SPECTRUM, LLC 626   2024-12-19   
320-404 6 Sunburg MN MRDCMN02RS0  2629 FEDERATED TELEPHONE COOPERATIVE - MN 626   2016-10-17   

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

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