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.

Missoula, MT

<< 1 2 3

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-519 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-03-26   
406-519 6 MSSLMTXC3MD  939H COMMIO, LLC 648   2023-09-22   
406-519 7 GRFLMTMANMD  515J IP HORIZON LLC 648   2021-10-22   
406-519 8 MSSLMTMACMD  6529 T-MOBILE USA, INC. 648   2022-05-20   
406-519 9 MSSLMTMACMD  6529 T-MOBILE USA, INC. 648   2022-05-20   
406-523 A MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-529 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-531 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-532 A MSSLMTXCDS0  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 648      
406-540 A GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-540 0 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-11-18   
406-540 1 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-540 2 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2014-01-31   
406-540 3 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2014-02-17   
406-540 4 MSSLMTEH4MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2014-05-28   
406-540 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-06-20   
406-540 6 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-06-20   
406-540 7 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-08-25   
406-540 8 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-11-18   
406-540 9 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-11-18   
406-541 A MSSLMTXCDS0  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 648      
406-542 A MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-543 A MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-544 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-546 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-549 A MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-550 A MSSLMTXC6MD  732J NUSO, LLC 648      
406-550 0 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-550 1 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-550 2 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-550 3 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-550 4 MSSLMTXC6MD  732J NUSO, LLC 648   2023-04-11   
406-550 5 MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2022-03-25   
406-550 6 MSSLMTMACMD  6529 T-MOBILE USA, INC. 648   2022-10-16   
406-550 7 MSSLMTMACMD  6529 T-MOBILE USA, INC. 648   2022-10-16   
406-550 8 GRFLMTMAHMD  073H TELNYX LLC 648   2023-02-24   
406-550 9 GRFLMTMAHMD  073H TELNYX LLC 648   2023-02-24   
406-552 A MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-552 0 MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2005-01-14   
406-552 1 MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2005-01-26   
406-552 2 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-01-04   
406-552 3 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-02-09   
406-552 4 MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-552 5 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-04-05   
406-552 6 MSSLMTMADS0  9636 QWEST CORPORATION 648   2006-04-25   
406-552 7 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-05-03   
406-552 8 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-09-23   
406-552 9 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-10-22   
406-610 A   6010 NEW CINGULAR WIRELESS PCS, LLC 648   2025-03-03   
406-610 0   453F ONVOY, LLC - MT 648   2025-03-04   
406-610 1   453F ONVOY, LLC - MT 648   2025-03-04   
406-610 2   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2025-03-04   
406-610 3   6529 T-MOBILE USA, INC. 648   2025-06-20   
406-610 7   732J NUSO, LLC 648   2025-03-04   
406-610 8   453F ONVOY, LLC - MT 648   2025-03-04   
406-610 9   6010 NEW CINGULAR WIRELESS PCS, LLC 648   2025-03-03   
406-721 A MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-728 A MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-829 A MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-830 A MSSLMTEH4MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-830 0 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-11-22   
406-830 1 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2016-06-05   
406-830 2 CHRLMT010MD  986F WESTERN MONTANA COMMUNITYTEL INC. - MT 648   2016-04-22   
406-830 3 MSSLMTEH4MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2007-04-08   
406-830 4 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-10-06   
406-830 5 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-04-09   
406-830 6 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-07-20   
406-830 7 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-09-06   
406-830 8 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-10-06   
406-830 9 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2016-06-05   
406-880 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-926 A MSSLMTEH4MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-926 0 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-10-05   
406-926 1 MSSLMTEH4MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2011-03-06   
406-926 2 MSSLMTEH4MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2011-08-21   
406-926 3 MSSLMTEH4MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2011-12-03   
406-926 4 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-926 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-10-05   
406-926 6 MSSLMTEH4MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2013-11-11   
406-926 7 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-10-05   
406-926 8 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2020-04-25   
406-926 9 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2016-01-22   

<< 1 2 3

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.