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: 359

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-359 A Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-359 0 Glendive MT BLNGMT933MD  073H TELNYX LLC 650   2018-07-25   
406-359 1 Glendive MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2009-02-13   
406-359 2 Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-359 3 Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-359 4 Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-359 5 Glendive MT BLNGMT934MD  939H COMMIO, LLC 650   2022-11-13   
406-359 6 Glendive MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2006-10-20   
406-359 7 Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-359 8 Glendive MT BLNGMT93DS0  588H AIRUS, INC. - MT 650   2020-03-16   
406-359 9 Glendive MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2018-12-17   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.