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: 350

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-350 A Lewistown MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-350 0 Lewistown MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-350 1 Lewistown MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-350 2 Lewistown MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-350 3 Lewistown MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-350 4 Lewistown MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-15   
406-350 5 Lewistown MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-15   
406-350 6 Lewistown MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-15   
406-350 7 Lewistown MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-15   
406-350 9 Lewistown MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2014-11-22   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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