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 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 406-357
| 0 |
Chinook |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-357
| 1 |
Chinook |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
648 |
|
2019-11-28 |
|
| 406-357
| 2 |
Chinook |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-357
| 3 |
Chinook |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-357
| 4 |
Chinook |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-357
| 5 |
Chinook |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2023-01-05 |
|
| 406-357
| 6 |
Chinook |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
2021-04-23 |
|
| 406-357
| 7 |
Chinook |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2020-02-24 |
|
| 406-357
| 8 |
Chinook |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-358
| A |
Melstone |
MT |
RNDPMTXCDS0 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-359
| A |
Glendive |
MT |
GLNDMTMADS0 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-359
| 0 |
Glendive |
MT |
|
073H TELNYX LLC |
650 |
|
2018-07-25 |
|
| 406-359
| 1 |
Glendive |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2009-02-13 |
|
| 406-359
| 2 |
Glendive |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-359
| 3 |
Glendive |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-359
| 4 |
Glendive |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-359
| 5 |
Glendive |
MT |
|
939H COMMIO, LLC |
650 |
|
2022-11-13 |
|
| 406-359
| 6 |
Glendive |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2006-10-20 |
|
| 406-359
| 7 |
Glendive |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-359
| 8 |
Glendive |
MT |
|
588H AIRUS, INC. - MT |
650 |
|
2020-03-16 |
|
| 406-359
| 9 |
Glendive |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2018-12-17 |
|
| 406-360
| A |
Hamilton |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-361
| A |
Hamilton |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-361
| 0 |
Hamilton |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2011-07-24 |
|
| 406-361
| 1 |
Hamilton |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2012-10-02 |
|
| 406-361
| 2 |
Hamilton |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2012-12-17 |
|
| 406-361
| 3 |
Hamilton |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2012-12-17 |
|
| 406-361
| 4 |
Hamilton |
MT |
|
986F WESTERN MONTANA COMMUNITYTEL INC. - MT |
648 |
|
2016-11-18 |
|
| 406-361
| 5 |
Hamilton |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2014-04-24 |
|
| 406-361
| 6 |
Hamilton |
MT |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
648 |
|
2014-01-15 |
|
| 406-361
| 7 |
Hamilton |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2011-09-22 |
|
| 406-361
| 8 |
Hamilton |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
2014-05-05 |
|
| 406-361
| 9 |
Hamilton |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2018-01-05 |
|
| 406-362
| A |
Lincoln |
MT |
LNCLMTXCDS0 |
2244 LINCOLN TEL. CO., INC. |
648 |
|
|
|
| 406-363
| A |
Hamilton |
MT |
HMTNMTMADS0 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 0 |
Hamilton |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 1 |
Hamilton |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 2 |
Hamilton |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 3 |
Hamilton |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 4 |
Hamilton |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 5 |
Hamilton |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 6 |
Hamilton |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 7 |
Hamilton |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 8 |
Hamilton |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-363
| 9 |
Hamilton |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-364
| A |
Hinsdale |
MT |
HNDLMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-365
| A |
Glendive |
MT |
GLNDMTMADS0 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-365
| 0 |
Glendive |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2021-07-05 |
|
| 406-365
| 1 |
Glendive |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2005-02-21 |
|
| 406-365
| 2 |
Glendive |
MT |
|
9636 QWEST CORPORATION |
650 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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