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.

Havre, MT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-262 A HAVRMTMADS0  9636 QWEST CORPORATION 648      
406-262 0 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-262 1 HAVRMTMADS0  9636 QWEST CORPORATION 648      
406-262 2 HAVRMTMADS0  9636 QWEST CORPORATION 648      
406-262 3 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-262 4 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-262 5 HAVRMTMADS0  9636 QWEST CORPORATION 648      
406-262 6 MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-262 7   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-262 8 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-262 9 HAVRMTMADS0  9636 QWEST CORPORATION 648      
406-265 A HAVRMTMADS0  9636 QWEST CORPORATION 648      
406-344 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-344 0 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-344 1 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-344 2 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-344 3 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-344 4 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-344 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-344 6 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-344 7 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-344 8 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-344 9 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-400 A HAVRMTXCDS1  958H TRIANGLE COMMUNICATION SYSTEM, INC. - MT- 648      
406-400 0 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-400 1 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-400 2 HAVRMTXCDS1  958H TRIANGLE COMMUNICATION SYSTEM, INC. - MT- 648      
406-400 3 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-400 4 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-400 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-400 6 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-400 7 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-400 8 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-400 9 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-808 A HLNAMTMAUMD  508J CENTURYLINK COMMUNICATIONS, LLC 648      
406-808 0 GRFLMTMAHMD  073H TELNYX LLC 648      
406-808 3 MSSLMTMAYMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 648      
406-808 6 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-808 7 HLNAMTMAUMD  508J CENTURYLINK COMMUNICATIONS, LLC 648      
406-808 8 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-808 9 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-879 A MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-879 0 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-879 1 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-879 2 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-879 3 HLNAMTMAMMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 648      
406-879 4 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-879 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-879 6 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-879 7 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-879 9 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-945 A MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 0 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 1 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 2 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 3 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 4 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 5 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 7 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 9   792K CHARTER IP ENABLED SERVICES, LLC 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.