Local Calling Guide
Area code/prefix search
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 47 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 406-603
| 0 |
Helena |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2014-07-12 |
|
| 406-603
| 4 |
Helena |
MT |
HLNAMTHO3MD |
7870 BLACKFOOT COMMUNICATIONS, INC. - MT |
648 |
|
2013-12-30 |
|
| 406-604
| A |
Great Falls |
MT |
GRFLMTMARS0 |
7870 BLACKFOOT COMMUNICATIONS, INC. - MT |
648 |
|
|
|
| 406-604
| 0 |
Great Falls |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-01-22 |
|
| 406-604
| 1 |
Great Falls |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-01-22 |
|
| 406-604
| 2 |
Great Falls |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2021-05-22 |
|
| 406-604
| 3 |
Great Falls |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2021-05-22 |
|
| 406-604
| 4 |
Great Falls |
MT |
GRFLMTMARS0 |
7870 BLACKFOOT COMMUNICATIONS, INC. - MT |
648 |
|
2011-09-11 |
|
| 406-604
| 5 |
Great Falls |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2021-05-22 |
|
| 406-604
| 6 |
Great Falls |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2021-05-22 |
|
| 406-604
| 7 |
Great Falls |
MT |
HLNAMTMAUMD |
508J CENTURYLINK COMMUNICATIONS, LLC |
648 |
|
2016-02-11 |
|
| 406-604
| 8 |
Great Falls |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-01-22 |
|
| 406-604
| 9 |
Great Falls |
MT |
GRFLMTMAHMD |
073H TELNYX LLC |
648 |
|
2023-08-25 |
|
| 406-605
| A |
Butte |
MT |
MSSLMTMAEMD |
073H TELNYX LLC |
648 |
|
|
|
| 406-605
| 0 |
Butte |
MT |
MSSLMTMAEMD |
073H TELNYX LLC |
648 |
|
2021-06-09 |
|
| 406-605
| 1 |
Butte |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2023-11-27 |
|
| 406-605
| 2 |
Butte |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2023-11-27 |
|
| 406-605
| 3 |
Butte |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2024-04-06 |
|
| 406-605
| 4 |
Butte |
MT |
GRFLMTMA69Z |
490J DISH WIRELESS, LLC |
648 |
|
2023-12-18 |
|
| 406-605
| 5 |
Butte |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2021-10-30 |
|
| 406-605
| 6 |
Butte |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2021-10-30 |
|
| 406-605
| 7 |
Butte |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2021-10-30 |
|
| 406-605
| 8 |
Butte |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2021-10-30 |
|
| 406-605
| 9 |
Butte |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2023-11-27 |
|
| 406-606
| A |
Billings |
MT |
BLNGMTMATMD |
935G TRI TEL, INC. - MT |
650 |
|
|
|
| 406-606
| 0 |
Billings |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2014-11-02 |
|
| 406-606
| 1 |
Billings |
MT |
BLNGMTMATMD |
935G TRI TEL, INC. - MT |
650 |
|
2013-01-28 |
|
| 406-606
| 2 |
Billings |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2014-11-14 |
|
| 406-606
| 3 |
Billings |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2022-11-12 |
|
| 406-606
| 4 |
Billings |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2019-07-08 |
|
| 406-606
| 5 |
Billings |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2022-11-12 |
|
| 406-606
| 6 |
Billings |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2019-07-08 |
|
| 406-606
| 7 |
Billings |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2022-11-12 |
|
| 406-606
| 8 |
Billings |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2018-10-09 |
|
| 406-606
| 9 |
Billings |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2018-10-09 |
|
| 406-607
| A |
Kalispell |
MT |
KLSLMTXC4MD |
7870 BLACKFOOT COMMUNICATIONS, INC. - MT |
648 |
|
|
|
| 406-607
| 0 |
Kalispell |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2016-06-05 |
|
| 406-607
| 1 |
Kalispell |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2021-04-06 |
|
| 406-607
| 2 |
Kalispell |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2022-02-25 |
|
| 406-607
| 3 |
Kalispell |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2022-03-15 |
|
| 406-607
| 4 |
Kalispell |
MT |
KLSLMTXC4MD |
7870 BLACKFOOT COMMUNICATIONS, INC. - MT |
648 |
|
2013-12-30 |
|
| 406-607
| 5 |
Kalispell |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2020-03-27 |
|
| 406-607
| 6 |
Kalispell |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-06-20 |
|
| 406-607
| 7 |
Kalispell |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2018-10-30 |
|
| 406-607
| 8 |
Kalispell |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-06-20 |
|
| 406-607
| 9 |
Kalispell |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2019-08-02 |
|
| 406-608
| A |
Billings |
MT |
BLNGMTASKMD |
515J IP HORIZON LLC |
650 |
|
|
|
| 406-608
| 0 |
Billings |
MT |
BLNGMTMAXMD |
6529 T-MOBILE USA, INC. |
650 |
|
2022-08-29 |
|
| 406-608
| 1 |
Billings |
MT |
BLNGMTASKMD |
515J IP HORIZON LLC |
650 |
|
2021-06-27 |
|
| 406-608
| 2 |
Billings |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2021-11-15 |
|
| 406-608
| 3 |
Billings |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2021-11-15 |
|
| 406-608
| 4 |
Billings |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2021-11-15 |
|
| 406-608
| 5 |
Billings |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2021-11-15 |
|
| 406-608
| 6 |
Billings |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2021-11-15 |
|
| 406-608
| 7 |
Billings |
MT |
BLNGMTMAXMD |
6529 T-MOBILE USA, INC. |
650 |
|
2022-08-29 |
|
| 406-608
| 8 |
Billings |
MT |
BLNGMTMAXMD |
6529 T-MOBILE USA, INC. |
650 |
|
2022-08-29 |
|
| 406-608
| 9 |
Billings |
MT |
BLNGMTMAXMD |
6529 T-MOBILE USA, INC. |
650 |
|
2022-08-29 |
|
| 406-609
| A |
Kalispell |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-609
| 0 |
Kalispell |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-609
| 1 |
Kalispell |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2023-01-29 |
|
| 406-609
| 2 |
Kalispell |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-609
| 3 |
Kalispell |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-609
| 4 |
Kalispell |
MT |
MSSLMTMA0MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
648 |
|
2021-10-04 |
|
| 406-609
| 5 |
Kalispell |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2022-10-08 |
|
| 406-609
| 6 |
Kalispell |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2021-06-25 |
|
| 406-609
| 7 |
Kalispell |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2021-06-25 |
|
| 406-609
| 8 |
Kalispell |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2021-05-08 |
|
| 406-609
| 9 |
Kalispell |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2021-05-08 |
|
| 406-610
| A |
Missoula |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2025-03-03 |
|
| 406-610
| 0 |
Missoula |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2025-03-04 |
|
| 406-610
| 1 |
Missoula |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2025-03-04 |
|
| 406-610
| 7 |
Missoula |
MT |
|
732J NUSO, LLC |
648 |
|
2025-03-04 |
|
| 406-610
| 8 |
Missoula |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2025-03-04 |
|
| 406-610
| 9 |
Missoula |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2025-03-03 |
|
| 406-612
| A |
Swan Lake |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
|
|
| 406-612
| 1 |
Swan Lake |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2012-12-15 |
|
| 406-612
| 2 |
Swan Lake |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2012-12-15 |
|
| 406-612
| 3 |
Swan Lake |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2012-12-15 |
|
| 406-612
| 4 |
Swan Lake |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2017-11-20 |
|
| 406-612
| 5 |
Swan Lake |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2020-11-08 |
|
| 406-612
| 6 |
Swan Lake |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-09-15 |
|
| 406-612
| 7 |
Swan Lake |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2007-12-06 |
|
| 406-612
| 8 |
Swan Lake |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2011-03-05 |
|
| 406-612
| 9 |
Swan Lake |
MT |
GRFLMTMAHMD |
073H TELNYX LLC |
648 |
|
2020-08-13 |
|
| 406-613
| A |
Bozeman |
MT |
BLNGMTWE8MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
|
|
| 406-613
| 0 |
Bozeman |
MT |
BLNGMT934MD |
939H COMMIO, LLC |
650 |
|
2022-08-19 |
|
| 406-613
| 1 |
Bozeman |
MT |
BLNGMTWE8MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2022-08-18 |
|
| 406-613
| 2 |
Bozeman |
MT |
BLNGMTWE8MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2022-08-18 |
|
| 406-613
| 3 |
Bozeman |
MT |
BLNGMTWE8MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2022-08-18 |
|
| 406-613
| 4 |
Bozeman |
MT |
BLNGMTWE8MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2022-08-18 |
|
| 406-613
| 5 |
Bozeman |
MT |
BLNGMTWE8MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2022-08-18 |
|
| 406-613
| 6 |
Bozeman |
MT |
BLNGMT93EMD |
490J DISH WIRELESS, LLC |
650 |
|
2023-06-29 |
|
| 406-613
| 7 |
Bozeman |
MT |
BLNGMTWE6MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2022-09-24 |
|
| 406-613
| 8 |
Bozeman |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2022-12-13 |
|
| 406-613
| 9 |
Bozeman |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2023-08-09 |
|
| 406-614
| A |
Bigfork |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
|
|
| 406-614
| 0 |
Bigfork |
MT |
GRFLMTMAHMD |
073H TELNYX LLC |
648 |
|
2020-12-31 |
|
| 406-614
| 1 |
Bigfork |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-614
| 2 |
Bigfork |
MT |
PLSNMTPC1MD |
986F WESTERN MONTANA COMMUNITYTEL INC. - MT |
648 |
|
2021-03-26 |
|
| 406-614
| 3 |
Bigfork |
MT |
MSSLMTMAYMD |
771G TELEPORT COMMUNICATIONS AMERICA MT - LLC |
648 |
|
2023-01-08 |
|
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Last updated: Sun, 26 Jan 2025 15:59:20 UTC
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