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 |
| 406-528
| A |
Ronan |
MT |
RONNMTXCDS0 |
2252 RONAN TEL. CO. |
648 |
|
|
|
| 406-529
| A |
Missoula |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-530
| A |
Laurel |
MT |
BLNGMTWE6MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
|
|
| 406-530
| 0 |
Laurel |
MT |
|
939H COMMIO, LLC |
650 |
|
2022-07-29 |
|
| 406-530
| 1 |
Laurel |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2006-10-20 |
|
| 406-530
| 2 |
Laurel |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2007-01-05 |
|
| 406-530
| 3 |
Laurel |
MT |
|
746D MONTANA OPTICOM, LLC - MT |
650 |
|
2010-08-16 |
|
| 406-530
| 4 |
Laurel |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2010-11-06 |
|
| 406-530
| 5 |
Laurel |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-05-31 |
|
| 406-530
| 6 |
Laurel |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2008-05-13 |
|
| 406-530
| 7 |
Laurel |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2011-08-11 |
|
| 406-530
| 8 |
Laurel |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2011-08-11 |
|
| 406-530
| 9 |
Laurel |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2008-11-26 |
|
| 406-531
| A |
Missoula |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-532
| A |
Missoula |
MT |
MSSLMTXCDS0 |
7870 BLACKFOOT COMMUNICATIONS, INC. - MT |
648 |
|
|
|
| 406-533
| A |
Butte |
MT |
BUTTMT18RS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-533
| 0 |
Butte |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-533
| 1 |
Butte |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-533
| 2 |
Butte |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-533
| 3 |
Butte |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-533
| 4 |
Butte |
MT |
|
624H ONVOY SPECTRUM, LLC |
648 |
|
2021-07-18 |
|
| 406-533
| 5 |
Butte |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2007-03-22 |
|
| 406-533
| 6 |
Butte |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-533
| 7 |
Butte |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-533
| 8 |
Butte |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2007-07-13 |
|
| 406-533
| 9 |
Butte |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2008-01-22 |
|
| 406-534
| A |
Billings |
MT |
BLNGMT93HMD |
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
|
|
| 406-534
| 0 |
Billings |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2006-09-01 |
|
| 406-534
| 1 |
Billings |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2006-03-26 |
|
| 406-534
| 2 |
Billings |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2005-04-29 |
|
| 406-534
| 3 |
Billings |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2005-10-22 |
|
| 406-534
| 4 |
Billings |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2007-09-21 |
|
| 406-534
| 5 |
Billings |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2013-12-09 |
|
| 406-534
| 6 |
Billings |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2010-06-27 |
|
| 406-534
| 7 |
Billings |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2013-12-09 |
|
| 406-534
| 8 |
Billings |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2014-03-24 |
|
| 406-534
| 9 |
Billings |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2009-02-13 |
|
| 406-535
| A |
Lewistown |
MT |
LWTWMTAQRS1 |
7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. |
648 |
|
|
|
| 406-536
| A |
Bozeman |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2025-02-09 |
|
| 406-536
| 0 |
Bozeman |
MT |
|
6529 T-MOBILE USA, INC. |
650 |
|
2025-02-23 |
|
| 406-536
| 1 |
Bozeman |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2025-02-25 |
|
| 406-536
| 2 |
Bozeman |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2025-06-14 |
|
| 406-536
| 3 |
Bozeman |
MT |
|
6529 T-MOBILE USA, INC. |
650 |
|
2025-06-11 |
|
| 406-536
| 4 |
Bozeman |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2025-09-19 |
|
| 406-536
| 5 |
Bozeman |
MT |
|
624H ONVOY SPECTRUM, LLC |
650 |
|
2025-02-10 |
|
| 406-536
| 6 |
Bozeman |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2025-09-19 |
|
| 406-536
| 7 |
Bozeman |
MT |
|
6529 T-MOBILE USA, INC. |
650 |
|
2025-10-03 |
|
| 406-536
| 8 |
Bozeman |
MT |
|
073H TELNYX LLC |
650 |
|
2025-09-19 |
|
| 406-536
| 9 |
Bozeman |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2025-02-09 |
|
| 406-537
| A |
Melville |
MT |
BGTMMTXCDS0 |
2257 TRIANGLE TEL. COOP. ASSN., INC. |
650 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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