Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 406 [Rate centres in NPA 406] [Dial plan for NPA 406]

NXX: 505

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-505 A Conrad MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-505 0 Conrad MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2010-11-28   
406-505 1 Conrad MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-07   
406-505 2 Conrad MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-02-11   
406-505 3 Conrad MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-02-11   
406-505 4 Conrad MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-505 5 Conrad MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-10-28   
406-505 6 Conrad MT HLNAMTMAUMD  508J CENTURYLINK COMMUNICATIONS, LLC 648   2014-05-24   
406-505 7 Conrad MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2011-10-21   
406-505 8 Conrad MT GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648   2021-07-18   
406-505 9 Conrad MT GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648   2021-11-14   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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