Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Sidney, MT

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-943 A BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-943 0 BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-943 1 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-07   
406-943 2 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-07   
406-943 3 BLNGMTWEAMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 650   2016-11-28   
406-943 4 BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-943 5 BLNGMTWEBMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650   2015-02-25   
406-943 6 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2020-11-10   
406-943 7 BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650   2016-08-12   
406-943 8 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-05   
406-943 9 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-05   
406-973 A BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-973 0 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-973 2   145J TERRA NOVA TELECOM INC. 650   2021-09-28   
406-973 3   145J TERRA NOVA TELECOM INC. 650   2024-02-12   
406-973 9 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      

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

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