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
406-326 A Reedpoint MT BGTMMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-327 A Missoula MT MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-328 A Absarokee MT ABSRMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-328 3 Absarokee MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-328 4 Absarokee MT ABSRMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-328 6 Absarokee MT ABSRMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-328 7 Absarokee MT ABSRMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-328 8 Absarokee MT ABSRMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-328 9 Absarokee MT ABSRMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-329 A Missoula MT MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-330 A Clinton MT   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-330 0 Clinton MT   6529 T-MOBILE USA, INC. 648      
406-330 2 Clinton MT   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-331 A Roundup MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-331 0 Roundup MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-332 A Pablo MT MSSLMTXCDS0  2235 BLACKFOOT TEL. COOP., INC. 648      
406-332 1 Pablo MT   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-332 9 Pablo MT MSSLMTXCDS0  2235 BLACKFOOT TEL. COOP., INC. 648      
406-333 A Livingston MT PRAYMTMARS1  9636 QWEST CORPORATION 650      
406-333 0 Livingston MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-333 1 Livingston MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-333 2 Livingston MT   792K CHARTER IP ENABLED SERVICES, LLC 650      
406-333 3 Livingston MT   145J TERRA NOVA TELECOM INC. 650      
406-333 4 Livingston MT PRAYMTMARS1  9636 QWEST CORPORATION 650      
406-333 5 Livingston MT BLNGMTWEBMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-333 6 Livingston MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-333 7 Livingston MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-333 8 Livingston MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-333 9 Livingston MT PRAYMTMARS1  9636 QWEST CORPORATION 650      
406-334 A Libby MT CRALIDABXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 960      
406-334 0 Libby MT CRALIDABXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 960      
406-334 1 Libby MT CRALIDABXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 960      
406-334 2 Libby MT CRALIDXXX7X  453F ONVOY, LLC - MT 960      
406-334 3 Libby MT CRALIDXXGMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 960      
406-334 4 Libby MT CRALIDABXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 960      
406-334 5 Libby MT CRALIDXXXBX  357E YMAX COMMUNICATIONS CORP. - MT 960      
406-334 6 Libby MT CRALIDXXGMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 960      
406-334 7 Libby MT CRALIDXXGMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 960      
406-334 8 Libby MT CRALIDXXX7X  453F ONVOY, LLC - MT 960      
406-334 9 Libby MT CRALIDXXGMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 960      
406-335 A Sweetgrass MT SNBRMTXCDS0  2248 NORTHERN TEL. COOP., INC. 648      
406-336 A North Cut Bank MT SNBRMTXCDS0  2248 NORTHERN TEL. COOP., INC. 648      
406-337 A Kevin-Oilmont MT SNBRMTXCDS0  2248 NORTHERN TEL. COOP., INC. 648      
406-338 A Browning MT BRNGMTAQDS0  619J SIYEH COMMUNICATIONS 648      
406-338 0 Browning MT GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648      
406-338 1 Browning MT BRNGMTAQDS0  619J SIYEH COMMUNICATIONS 648      
406-338 2 Browning MT BRNGMTAQDS0  619J SIYEH COMMUNICATIONS 648      
406-338 3 Browning MT BRNGMTAQDS0  619J SIYEH COMMUNICATIONS 648      
406-338 4 Browning MT BRNGMTAQDS0  619J SIYEH COMMUNICATIONS 648      
406-338 5 Browning MT BRNGMTAQDS0  619J SIYEH COMMUNICATIONS 648      
406-338 6 Browning MT BRNGMTAQDS0  619J SIYEH COMMUNICATIONS 648      
406-338 7 Browning MT BRNGMTAQDS0  619J SIYEH COMMUNICATIONS 648      
406-338 8 Browning MT BRNGMTAQDS0  619J SIYEH COMMUNICATIONS 648      
406-338 9 Browning MT BRNGMTAQDS0  619J SIYEH COMMUNICATIONS 648      
406-339 A Ethridge MT SNBRMTXCDS0  2248 NORTHERN TEL. COOP., INC. 648      
406-340 A Lima MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-341 A Manhattan MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-341 0 Manhattan MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-341 1 Manhattan MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-341 2 Manhattan MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-341 3 Manhattan MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-341 4 Manhattan MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-341 5 Manhattan MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-341 6 Manhattan MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-341 7 Manhattan MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-341 8 Manhattan MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-341 9 Manhattan MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-342 A Hysham MT HYSHMTXCRS1  2251 RANGE TEL COOP INC 650      
406-343 A Wyola MT WYOLMTXCRS1  2250 PROJECT TEL. CO., INC. 650      
406-343 0 Wyola MT WYOLMTXCRS1  2250 PROJECT TEL. CO., INC. 650      
406-343 1 Wyola MT WYOLMTXCRS1  2250 PROJECT TEL. CO., INC. 650      
406-343 2 Wyola MT WYOLMTXCRS1  2250 PROJECT TEL. CO., INC. 650      
406-343 4 Wyola MT WYOLMTXCRS1  2250 PROJECT TEL. CO., INC. 650      
406-343 5 Wyola MT WYOLMTXCRS1  2250 PROJECT TEL. CO., INC. 650      
406-343 6 Wyola MT WYOLMTXCRS1  2250 PROJECT TEL. CO., INC. 650      
406-343 7 Wyola MT WYOLMTXCRS1  2250 PROJECT TEL. CO., INC. 650      
406-343 8 Wyola MT WYOLMTXCRS1  2250 PROJECT TEL. CO., INC. 650      
406-343 9 Wyola MT WYOLMTXCRS1  2250 PROJECT TEL. CO., INC. 650      
406-344 A Havre MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-344 0 Havre MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-344 1 Havre MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-344 2 Havre MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-344 3 Havre MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-344 4 Havre MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-344 5 Havre MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-344 6 Havre MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-344 7 Havre MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-344 8 Havre MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-344 9 Havre MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-345 A Glendive MT GLNDMTAJRS0  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 650      
406-345 0 Glendive MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-345 1 Glendive MT BLNGMT93DS0  588H AIRUS, INC. - MT 650      
406-345 2 Glendive MT GLNDMTAJRS0  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 650      
406-345 3 Glendive MT GLNDMTAJRS0  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 650      
406-345 4 Glendive MT   145J TERRA NOVA TELECOM INC. 650      
406-345 5 Glendive MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-345 6 Glendive MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-345 7 Glendive MT GLNDMTAJRS0  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 650      
406-345 8 Glendive MT GLNDMTAJRS0  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 650      
406-345 9 Glendive MT GLNDMTAJRS0  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 650      

<< 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: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.