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: 559

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-559 A Anaconda MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-559 0 Anaconda MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-559 2 Anaconda MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2011-01-16   
406-559 3 Anaconda MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-17   
406-559 4 Anaconda MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-559 6 Anaconda MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2010-11-05   
406-559 7 Anaconda MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2016-06-18   
406-559 8 Anaconda MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-07   
406-559 9 Anaconda MT GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648   2021-10-30   

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

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