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: 399

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-399 A Irving MN STCDMNTOXXX  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 626      
320-399 0 Irving MN STCDMNTOX3X  184D ONVOY, LLC - MN 626   2023-09-03   
320-399 1 Irving MN STCDMNTOXXX  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 626   2010-08-07   
320-399 2 Irving MN STCDMNTOX3X  184D ONVOY, LLC - MN 626   2021-03-11   
320-399 3 Irving MN STCDMNTOX3X  184D ONVOY, LLC - MN 626   2020-05-26   
320-399 4 Irving MN STCDMNTOX3X  184D ONVOY, LLC - MN 626   2021-04-07   
320-399 5 Irving MN STCDMNTOX0X  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 626   2021-02-02   
320-399 6 Irving MN STCDMNTOXNX  624H ONVOY SPECTRUM, LLC 626   2024-12-19   
320-399 9 Irving MN STCDMNTOX4Y  965H FRACTEL, LLC 626   2020-08-17   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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