Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 406 [Rate centres in NPA 406] [Dial plan for NPA 406]

NXX: 948

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-948 A Glendive MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-948 0 Glendive MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-948 1 Glendive MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-08-11   
406-948 2 Glendive MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-08-11   
406-948 3 Glendive MT BLNGMTWEAMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 650   2010-10-01   
406-948 4 Glendive MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-948 5 Glendive MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2012-12-17   
406-948 6 Glendive MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2013-01-24   
406-948 7 Glendive MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2012-12-17   
406-948 8 Glendive MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-08-10   
406-948 9 Glendive MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2012-12-17   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.