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: 316

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-316 A Boulder MT HLNAMTMAX0X  7421 AT&T - LOCAL 648      
406-316 0 Boulder MT GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648      
406-316 1 Boulder MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-316 2 Boulder MT GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648      
406-316 3 Boulder MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-316 4 Boulder MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-316 5 Boulder MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-316 6 Boulder MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-316 7 Boulder MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-316 8 Boulder MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-316 9 Boulder MT HLNAMTMAX0X  7421 AT&T - LOCAL 648      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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