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.

Victor, MT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-419 A   453F ONVOY, LLC - MT 648   2025-01-13   
406-419 0 GRFLMTMAHMD  073H TELNYX LLC 648      
406-419 1 MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-419 2 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-419 4 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-419 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-419 6 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-642 A VCTRMTMARS1  9636 QWEST CORPORATION 648      
406-642 0 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-642 2 VCTRMTMARS1  9636 QWEST CORPORATION 648      
406-642 3 VCTRMTMARS1  9636 QWEST CORPORATION 648      
406-642 4 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-642 5 HLNAMTMAUMD  508J CENTURYLINK COMMUNICATIONS, LLC 648      
406-642 6 VCTRMTMARS1  9636 QWEST CORPORATION 648      
406-642 7 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-642 8 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-642 9 VCTRMTMARS1  9636 QWEST CORPORATION 648      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.