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 |
| 406-662
| 6 |
Bridger |
MT |
|
624H ONVOY SPECTRUM, LLC |
650 |
|
2024-03-22 |
|
| 406-662
| 7 |
Bridger |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2007-04-14 |
|
| 406-662
| 8 |
Bridger |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2013-06-23 |
|
| 406-662
| 9 |
Bridger |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-663
| A |
Rapelje |
MT |
BGTMMTXCDS0 |
2257 TRIANGLE TEL. COOP. ASSN., INC. |
650 |
|
|
|
| 406-664
| A |
Belfry |
MT |
BLFYMTXCDS0 |
2250 PROJECT TEL. CO., INC. |
650 |
|
|
|
| 406-665
| A |
Hardin |
MT |
HRDNMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-665
| 1 |
Hardin |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-665
| 2 |
Hardin |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-665
| 3 |
Hardin |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-665
| 4 |
Hardin |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-665
| 5 |
Hardin |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-665
| 6 |
Hardin |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-665
| 7 |
Hardin |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-665
| 8 |
Hardin |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-665
| 9 |
Hardin |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-666
| A |
Fort Smith |
MT |
FTSMMTXCRS1 |
2250 PROJECT TEL. CO., INC. |
650 |
|
|
|
| 406-667
| A |
Broadview |
MT |
BGTMMTXCDS0 |
2257 TRIANGLE TEL. COOP. ASSN., INC. |
650 |
|
|
|
| 406-668
| A |
Fromberg |
MT |
FRMBMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-668
| 0 |
Fromberg |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2004-11-13 |
|
| 406-668
| 1 |
Fromberg |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2009-02-13 |
|
| 406-668
| 2 |
Fromberg |
MT |
|
935G TRI TEL, INC. - MT |
650 |
|
2013-01-28 |
|
| 406-668
| 3 |
Fromberg |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-05-31 |
|
| 406-668
| 4 |
Fromberg |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2011-10-20 |
|
| 406-668
| 5 |
Fromberg |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2023-08-20 |
|
| 406-668
| 6 |
Fromberg |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2007-03-19 |
|
| 406-668
| 7 |
Fromberg |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-668
| 8 |
Fromberg |
MT |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2016-08-11 |
|
| 406-668
| 9 |
Fromberg |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-669
| A |
Molt |
MT |
BGTMMTXCDS0 |
2257 TRIANGLE TEL. COOP. ASSN., INC. |
650 |
|
|
|
| 406-670
| A |
Billings |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-671
| A |
Billings |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-672
| A |
Billings |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-673
| A |
Hays |
MT |
HAYSMTXCRS1 |
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-673
| 0 |
Hays |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-673
| 1 |
Hays |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-673
| 2 |
Hays |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-673
| 3 |
Hays |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-673
| 4 |
Hays |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-673
| 5 |
Hays |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-673
| 6 |
Hays |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-673
| 7 |
Hays |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-673
| 8 |
Hays |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-673
| 9 |
Hays |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-674
| A |
Whitewater |
MT |
HAVRMTXCDS0 |
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-674
| 0 |
Whitewater |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-674
| 1 |
Whitewater |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-674
| 2 |
Whitewater |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-674
| 3 |
Whitewater |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-674
| 4 |
Whitewater |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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