Local Calling Guide
Area code/prefix search
NPA: 406
[Rate centres in NPA 406]
[Dial plan for NPA 406]
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| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 406-608
| 0 |
Billings |
MT |
|
6529 T-MOBILE USA, INC. |
650 |
|
2022-08-29 |
|
| 406-608
| 1 |
Billings |
MT |
|
515J IP HORIZON LLC |
650 |
|
2021-06-27 |
|
| 406-608
| 2 |
Billings |
MT |
|
624H ONVOY SPECTRUM, LLC |
650 |
|
2021-11-15 |
|
| 406-608
| 3 |
Billings |
MT |
|
624H ONVOY SPECTRUM, LLC |
650 |
|
2021-11-15 |
|
| 406-608
| 4 |
Billings |
MT |
|
624H ONVOY SPECTRUM, LLC |
650 |
|
2021-11-15 |
|
| 406-608
| 5 |
Billings |
MT |
|
624H ONVOY SPECTRUM, LLC |
650 |
|
2021-11-15 |
|
| 406-608
| 6 |
Billings |
MT |
|
624H ONVOY SPECTRUM, LLC |
650 |
|
2021-11-15 |
|
| 406-608
| 7 |
Billings |
MT |
|
6529 T-MOBILE USA, INC. |
650 |
|
2022-08-29 |
|
| 406-608
| 8 |
Billings |
MT |
|
6529 T-MOBILE USA, INC. |
650 |
|
2022-08-29 |
|
| 406-608
| 9 |
Billings |
MT |
|
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 |
|
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-609
| 1 |
Kalispell |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2023-01-29 |
|
| 406-609
| 2 |
Kalispell |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-609
| 3 |
Kalispell |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-609
| 4 |
Kalispell |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
648 |
|
2021-10-04 |
|
| 406-609
| 5 |
Kalispell |
MT |
|
6529 T-MOBILE USA, INC. |
648 |
|
2022-10-08 |
|
| 406-609
| 6 |
Kalispell |
MT |
|
6529 T-MOBILE USA, INC. |
648 |
|
2021-06-25 |
|
| 406-609
| 7 |
Kalispell |
MT |
|
6529 T-MOBILE USA, INC. |
648 |
|
2021-06-25 |
|
| 406-609
| 8 |
Kalispell |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2021-05-08 |
|
| 406-609
| 9 |
Kalispell |
MT |
|
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
| 2 |
Missoula |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2025-03-04 |
|
| 406-610
| 3 |
Missoula |
MT |
|
6529 T-MOBILE USA, INC. |
648 |
|
2025-06-20 |
|
| 406-610
| 4 |
Missoula |
MT |
|
6529 T-MOBILE USA, INC. |
648 |
|
2025-07-11 |
|
| 406-610
| 6 |
Missoula |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2025-08-29 |
|
| 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 |
|
453F ONVOY, LLC - MT |
648 |
|
2012-12-15 |
|
| 406-612
| 2 |
Swan Lake |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2012-12-15 |
|
| 406-612
| 3 |
Swan Lake |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2012-12-15 |
|
| 406-612
| 4 |
Swan Lake |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2017-11-20 |
|
| 406-612
| 5 |
Swan Lake |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2020-11-08 |
|
| 406-612
| 6 |
Swan Lake |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2019-09-15 |
|
| 406-612
| 7 |
Swan Lake |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2007-12-06 |
|
| 406-612
| 8 |
Swan Lake |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2011-03-05 |
|
| 406-612
| 9 |
Swan Lake |
MT |
|
073H TELNYX LLC |
648 |
|
2020-08-13 |
|
| 406-613
| A |
Bozeman |
MT |
BLNGMTWE8MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
|
|
| 406-613
| 0 |
Bozeman |
MT |
|
939H COMMIO, LLC |
650 |
|
2022-08-19 |
|
| 406-613
| 1 |
Bozeman |
MT |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2022-08-18 |
|
| 406-613
| 2 |
Bozeman |
MT |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2022-08-18 |
|
| 406-613
| 3 |
Bozeman |
MT |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2022-08-18 |
|
| 406-613
| 4 |
Bozeman |
MT |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2022-08-18 |
|
| 406-613
| 5 |
Bozeman |
MT |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2022-08-18 |
|
| 406-613
| 6 |
Bozeman |
MT |
|
490J DISH WIRELESS, LLC |
650 |
|
2023-06-29 |
|
| 406-613
| 7 |
Bozeman |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2022-09-24 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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