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: 468

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-468 A Cascade MT CSCDMTMARS1  9636 QWEST CORPORATION 648      
406-468 0 Cascade MT CSCDMTMARS1  9636 QWEST CORPORATION 648      
406-468 1 Cascade MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-468 2 Cascade MT CSCDMTMARS1  9636 QWEST CORPORATION 648      
406-468 3 Cascade MT CSCDMTMARS1  9636 QWEST CORPORATION 648      
406-468 4 Cascade MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-468 5 Cascade MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-468 6 Cascade MT   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-468 7 Cascade MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-468 8 Cascade MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-468 9 Cascade MT CSCDMTMARS1  9636 QWEST CORPORATION 648      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.