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: 278

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-278 A Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-278 0 Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-278 1 Conrad MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-03-19   
406-278 3 Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-278 4 Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-278 5 Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-278 6 Conrad MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2006-07-10   
406-278 7 Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-278 8 Conrad MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2010-08-30   
406-278 9 Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      

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

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