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.

Lakeside, MT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-709 A   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-709 0 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-709 2   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-709 3 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-709 4 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-709 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-709 6 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-709 7 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-709 8 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-709 9 GRFLMTMAHMD  073H TELNYX LLC 648      
406-844 A LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 0 LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 1 CHRLMT010MD  986F WESTERN MONTANA COMMUNITYTEL INC. - MT 648      
406-844 2 LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 3 LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 4 LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-844 6 MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-844 8 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-844 9 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.