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
406-235 4 Wolf Creek MT WLCKMTMARS1  9636 QWEST CORPORATION 648      
406-235 5 Wolf Creek MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-13   
406-235 7 Wolf Creek MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-03-19   
406-235 8 Wolf Creek MT GRFLMTMAHMD  073H TELNYX LLC 648   2022-01-18   
406-235 9 Wolf Creek MT WLCKMTMARS1  9636 QWEST CORPORATION 648      
406-236 A Neihart MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-237 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-238 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-239 A Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-239 0 Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-239 1 Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-239 2 Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-239 3 Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-239 4 Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-239 5 Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-239 6 Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-239 7 Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-239 8 Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-239 9 Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-240 A Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-241 A Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-241 0 Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-241 1 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2007-08-21   
406-241 2 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2007-08-28   
406-241 3 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2007-09-10   
406-241 4 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2007-11-12   
406-241 5 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2007-11-19   
406-241 6 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2007-12-03   
406-241 7 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-01-23   
406-241 8 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-01-23   
406-241 9 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-02-14   
406-242 A Thompson Falls MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-242 0 Thompson Falls MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-242 5 Thompson Falls MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2018-01-15   
406-243 A Missoula MT MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-244 A Potomac MT CLTNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-245 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-246 A Dixon MT CLTNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-247 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-247 0 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2010-04-15   
406-247 1 Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-247 2 Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-247 3 Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-247 4 Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-247 5 Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-247 6 Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-247 7 Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-247 8 Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-247 9 Billings MT   145J TERRA NOVA TELECOM INC. 650   2021-09-28   
406-248 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-249 A Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-250 A Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-251 A Missoula MT MSSLMTSORS1  9636 QWEST CORPORATION 648      
406-252 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-253 A Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-254 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-255 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-256 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-257 A Kalispell MT KLSLMTXCDS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-258 A Missoula MT MLTWMTMARS1  9636 QWEST CORPORATION 648      
406-258 0 Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2006-05-27   
406-258 1 Missoula MT MSSLMTMADS0  9636 QWEST CORPORATION 648   2006-07-10   
406-258 2 Missoula MT MLTWMTMARS1  9636 QWEST CORPORATION 648      
406-258 3 Missoula MT MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-258 4 Missoula MT MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-258 5 Missoula MT MLTWMTMARS1  9636 QWEST CORPORATION 648      
406-258 6 Missoula MT MLTWMTMARS1  9636 QWEST CORPORATION 648      
406-258 7 Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2008-08-29   
406-258 8 Missoula MT MSSLMTMACMD  6529 T-MOBILE USA, INC. 648   2021-10-18   
406-258 9 Missoula MT MLTWMTMARS1  9636 QWEST CORPORATION 648      
406-259 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-260 A Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-260 0 Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-260 1 Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-01-08   
406-260 2 Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-01-08   
406-260 3 Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-01-08   
406-260 4 Kalispell MT   792K CHARTER IP ENABLED SERVICES, LLC 648   2008-06-17   
406-260 5 Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-07-10   
406-260 6 Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-08-11   
406-260 7 Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-09-22   
406-260 8 Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-10-20   
406-260 9 Kalispell MT MSSLMTMACMD  6529 T-MOBILE USA, INC. 648   2022-10-08   
406-261 A Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-261 0 Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-261 1 Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-261 2 Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-261 3 Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-261 4 Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-261 5 Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-261 6 Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-261 7 Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-261 8 Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-261 9 Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-262 A Havre MT HAVRMTMADS0  9636 QWEST CORPORATION 648      
406-262 0 Havre MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2015-09-10   
406-262 1 Havre MT HAVRMTMADS0  9636 QWEST CORPORATION 648      
406-262 2 Havre MT HAVRMTMADS0  9636 QWEST CORPORATION 648      
406-262 3 Havre MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-262 4 Havre MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-262 5 Havre MT HAVRMTMADS0  9636 QWEST CORPORATION 648      

<< 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: LES.NET

Like this site? We accept donations via PayPal.