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]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-262 6 Havre MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2023-01-13   
406-262 7 Havre MT   792K CHARTER IP ENABLED SERVICES, LLC 648   2006-03-04   
406-262 8 Havre MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2006-10-19   
406-262 9 Havre MT HAVRMTMADS0  9636 QWEST CORPORATION 648      
406-263 A Glasgow MT GLSGMTXC1MD  443B SAGEBRUSH CELLULAR, INC. 650      
406-264 A Fort Shaw MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-265 A Havre MT HAVRMTMADS0  9636 QWEST CORPORATION 648      
406-266 A Townsend MT TWNSMTMARS1  9636 QWEST CORPORATION 648      
406-266 0 Townsend MT   792K CHARTER IP ENABLED SERVICES, LLC 648   2019-06-14   
406-266 1 Townsend MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2010-11-06   
406-266 3 Townsend MT TWNSMTMARS1  9636 QWEST CORPORATION 648      
406-266 4 Townsend MT TWNSMTMARS1  9636 QWEST CORPORATION 648      
406-266 5 Townsend MT TWNSMTMARS1  9636 QWEST CORPORATION 648      
406-266 6 Townsend MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-07-08   
406-266 7 Townsend MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-03-19   
406-266 9 Townsend MT TWNSMTMARS1  9636 QWEST CORPORATION 648      
406-267 A Divide MT WSDMMTXCDS0  2254 SOUTHERN MONTANA TEL. CO. 648      
406-268 A Great Falls MT GRFLMTMADS0  9636 QWEST CORPORATION 648      
406-268 0 Great Falls MT GRFLMTMADS0  9636 QWEST CORPORATION 648      
406-268 1 Great Falls MT GRFLMTMADS0  9636 QWEST CORPORATION 648      
406-268 2 Great Falls MT GRFLMTMADS0  9636 QWEST CORPORATION 648      
406-268 3 Great Falls MT GRFLMTMADS0  9636 QWEST CORPORATION 648      
406-268 6 Great Falls MT GRFLMTMADS0  9636 QWEST CORPORATION 648      
406-268 7 Great Falls MT GRFLMTMADS0  9636 QWEST CORPORATION 648      
406-268 8 Great Falls MT GRFLMTMADS0  9636 QWEST CORPORATION 648      
406-268 9 Great Falls MT GRFLMTMADS0  9636 QWEST CORPORATION 648      
406-269 A St Regis MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-269 0 St Regis MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-270 A Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-271 A Conrad MT CNRDMTAGDS0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-271 0 Conrad MT CNRDMTAGDS0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-271 1 Conrad MT CNRDMTAGDS0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-271 2 Conrad MT CNRDMTAGDS0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-271 3 Conrad MT CNRDMTAGDS0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-271 4 Conrad MT CNRDMTAGDS0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-271 5 Conrad MT CNRDMTAGDS0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-271 6 Conrad MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-07-05   
406-271 7 Conrad MT CNRDMTAGDS0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-271 8 Conrad MT CNRDMTAGDS0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-271 9 Conrad MT CNRDMTAGDS0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-272 A Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-272 0 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2010-06-17   
406-272 1 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-272 2 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-06-19   
406-272 3 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-06-19   
406-272 4 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-09-18   
406-272 5 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2010-10-21   
406-272 6 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2012-09-09   
406-272 7 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2012-09-09   
406-272 8 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2011-09-16   
406-272 9 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2012-09-09   
406-273 A Missoula MT LOLOMTMARS1  9636 QWEST CORPORATION 648      
406-273 0 Missoula MT LOLOMTMARS1  9636 QWEST CORPORATION 648      
406-273 1 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2011-07-08   
406-273 2 Missoula MT LOLOMTMARS1  9636 QWEST CORPORATION 648      
406-273 3 Missoula MT LOLOMTMARS1  9636 QWEST CORPORATION 648      
406-273 4 Missoula MT LOLOMTMARS1  9636 QWEST CORPORATION 648      
406-273 5 Missoula MT LOLOMTMARS1  9636 QWEST CORPORATION 648      
406-273 6 Missoula MT LOLOMTMARS1  9636 QWEST CORPORATION 648      
406-273 7 Missoula MT LOLOMTMARS1  9636 QWEST CORPORATION 648      
406-273 8 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2011-08-04   
406-273 9 Missoula MT LOLOMTMARS1  9636 QWEST CORPORATION 648      
406-274 A Missoula MT MSSLMTMAHMD  7421 AT&T - LOCAL 648      
406-274 0 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-02-14   
406-274 1 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2011-06-03   
406-274 2 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-08-18   
406-274 3 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-09-02   
406-274 4 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-10-29   
406-274 5 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2011-07-05   
406-274 6 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-10-29   
406-274 7 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-10-29   
406-274 8 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2011-04-04   
406-274 9 Missoula MT MSSLMTMAHMD  7421 AT&T - LOCAL 648      
406-275 A Pablo MT FHIRMT01RS0  2252 RONAN TEL. CO. 648      
406-276 A Lima MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-276 0 Lima MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-276 1 Lima MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-276 2 Lima MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-276 3 Lima MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-276 8 Lima MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-276 9 Lima MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-277 A Belt MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-278 A Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-278 0 Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-278 1 Conrad MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-03-19   
406-278 3 Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-278 4 Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-278 5 Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-278 6 Conrad MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2006-07-10   
406-278 7 Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-278 8 Conrad MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2010-08-30   
406-278 9 Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-279 A Valier MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-280 A St Regis MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-280 0 St Regis MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-281 A Billings MT BLNGMTWEBMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-281 0 Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2005-03-03   
406-281 1 Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2005-06-20   
406-281 2 Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2005-09-26   
406-281 3 Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2006-03-20   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 >>

Last updated: Sun, 06 Oct 2024 02:51:32 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.