Local Calling Guide

Area code/prefix search

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Madison, MN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
320-598 A MDSNMNXMDS0  1367 FRONTIER COMMUNICATIONS OF MINNESOTA, INC. 626      
320-698 A MDSNMN01RS2  2836 FARMERS MUTUAL TELEPHONE COMPANY - MN 626      
320-853 A STCDMNTOXXX  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 626      
320-853 0 STCDMNTOXXX  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 626   2010-05-16   
320-853 1 STCDMNTOX3X  184D ONVOY, LLC - MN 626   2016-07-29   
320-853 2 STCDMNTOX3X  184D ONVOY, LLC - MN 626   2021-05-24   
320-853 3 STCDMNTOX3X  184D ONVOY, LLC - MN 626   2015-06-19   
320-853 5 STCDMNTOX3X  184D ONVOY, LLC - MN 626   2022-08-07   
320-853 6 STCDMNTOXUX  8405 TELEPORT COMMUNICATIONS AMERICA, LLC - MN 626   2022-07-11   
320-853 7 STCDMNTOX0X  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 626   2017-06-21   
320-853 8 STCDMNTOXTX  073H TELNYX LLC 626   2020-07-20   

Last updated: Sat, 04 Jul 2026 13:07:56 UTC

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