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: 818

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-818 A Red Lodge MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-818 0 Red Lodge MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2015-04-03   
406-818 1 Red Lodge MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2025-03-15   
406-818 4 Red Lodge MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2024-07-26   
406-818 5 Red Lodge MT   145J TERRA NOVA TELECOM INC. 650   2022-01-16   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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