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: 299

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-299 A Butte MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-299 0 Butte MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2014-07-14   
406-299 1 Butte MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2006-05-27   
406-299 2 Butte MT HLNAMTHHPS1  008E BRESNAN BROADBAND OF MONTANA, LLC - MT [CHARTER] 648   2007-01-02   
406-299 3 Butte MT HLNAMTHHPS1  008E BRESNAN BROADBAND OF MONTANA, LLC - MT [CHARTER] 648   2012-03-05   
406-299 4 Butte MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-07-05   
406-299 5 Butte MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-07-05   
406-299 6 Butte MT MSSLMTMAYMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 648   2014-10-20   
406-299 7 Butte MT HLNAMTMAUMD  508J CENTURYLINK COMMUNICATIONS, LLC 648   2015-06-27   
406-299 8 Butte MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2013-02-28   
406-299 9 Butte MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      

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

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