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.

Butte, MT

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-221 A HLNAMTMAKMD  7421 AT&T - LOCAL 648      
406-221 0   073H TELNYX LLC 648      
406-221 1 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-221 2 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-221 3 HLNAMTMAMMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 648      
406-221 4 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-221 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-221 6 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-221 7   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-221 8 GRFLMTMAHMD  073H TELNYX LLC 648      
406-221 9 HLNAMTMAKMD  7421 AT&T - LOCAL 648      
406-299 A MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-299 0 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-299 1 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-299 2   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-299 3   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-299 4 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-299 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-299 6 MSSLMTMAYMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 648      
406-299 7 HLNAMTMAUMD  508J CENTURYLINK COMMUNICATIONS, LLC 648      
406-299 8 MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-299 9 MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-310 A BUTTMTAQ2MD  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 648      
406-310 1   6529 T-MOBILE USA, INC. 648      
406-310 2   6529 T-MOBILE USA, INC. 648      
406-310 3 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-310 4 BUTTMTAQ2MD  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 648      
406-310 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-310 6 HLNAMTMAWMD  6529 T-MOBILE USA, INC. 648      
406-310 7 HLNAMTMAWMD  5562 METROPCS, INC. 648      
406-310 8 HLNAMTMAWMD  5562 METROPCS, INC. 648      
406-310 9 HLNAMTMAWMD  6529 T-MOBILE USA, INC. 648      
406-479 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-479 0 HLNAMTMAWMD  6529 T-MOBILE USA, INC. 648      
406-479 1 HLNAMTMAWMD  6529 T-MOBILE USA, INC. 648      
406-479 2 GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648      
406-479 3 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-479 4 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-479 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-479 6 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-479 7 GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-479 8   939H COMMIO, LLC 648      
406-479 9 HLNAMTMAWMD  6529 T-MOBILE USA, INC. 648      
406-490 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-491 A MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-491 0 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-491 1 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-491 2 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-491 3 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-491 4 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-491 5 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-491 6 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-491 7 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-491 8 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-491 9 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-494 A BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-496 A BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-496 0 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-496 1 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-496 2 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-496 3 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-496 4 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-496 5 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-496 6 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-496 7   9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-496 8 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-496 9 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-497 A BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-497 0 GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648      
406-497 1 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-497 2 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-497 3 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-497 4 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-497 5 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-497 6 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-497 7 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-497 8 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-497 9 BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-498 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-533 A BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 0 BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 1 BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 2 BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 3 BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 4 GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648      
406-533 5 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-533 6 BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 7 BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 8 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-533 9 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-565 A MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-565 0 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-565 1 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-565 2 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-565 3 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-565 4 MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-565 5   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-565 6 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-565 7 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-565 8 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      

1 2 >>

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.