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: 629

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-629 A Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-629 0 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-629 1 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2012-12-17   
406-629 2 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2012-12-17   
406-629 3 Hardin MT BLNGMTWEAMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 650   2010-10-01   
406-629 4 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-09-15   
406-629 5 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-09-15   
406-629 6 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2023-04-18   
406-629 7 Hardin MT   624H ONVOY SPECTRUM, LLC 650   2024-03-22   
406-629 8 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2023-11-22   
406-629 9 Hardin MT BLNGMTMARMD  357E YMAX COMMUNICATIONS CORP. - MT 650   2011-04-04   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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