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: 821

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-821 A Darby MT DRBYMTMARS1  9636 QWEST CORPORATION 648      
406-821 0 Darby MT DRBYMTMARS1  9636 QWEST CORPORATION 648      
406-821 1 Darby MT DRBYMTMARS1  9636 QWEST CORPORATION 648      
406-821 2 Darby MT DRBYMTMARS1  9636 QWEST CORPORATION 648      
406-821 3 Darby MT DRBYMTMARS1  9636 QWEST CORPORATION 648      
406-821 4 Darby MT DRBYMTMARS1  9636 QWEST CORPORATION 648      
406-821 5 Darby MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-07   
406-821 6 Darby MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-03-19   
406-821 7 Darby MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-10   
406-821 8 Darby MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2020-05-06   
406-821 9 Darby MT DRBYMTMARS1  9636 QWEST CORPORATION 648      

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

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