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: 369

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-369 A Hamilton MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-369 0 Hamilton MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-369 1 Hamilton MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-369 2 Hamilton MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-369 3 Hamilton MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-369 4 Hamilton MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-369 5 Hamilton MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-11-18   
406-369 6 Hamilton MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2006-10-19   
406-369 7 Hamilton MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-11-08   
406-369 8 Hamilton MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2010-11-06   
406-369 9 Hamilton MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-03-07   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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