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 98 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 406-521
| 7 |
Townsend |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2011-10-24 |
|
| 406-521
| 8 |
Townsend |
MT |
GRFLMTMAHMD |
073H TELNYX LLC |
648 |
|
2020-08-13 |
|
| 406-521
| 9 |
Townsend |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-03-07 |
|
| 406-522
| A |
Bozeman |
MT |
BZMNMTMADS0 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-523
| A |
Missoula |
MT |
MSSLMTMADS0 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-524
| A |
Valley Industrial Park |
MT |
GAFBMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-524
| 3 |
Valley Industrial Park |
MT |
GAFBMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-524
| 7 |
Valley Industrial Park |
MT |
GAFBMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-524
| 8 |
Valley Industrial Park |
MT |
GLSGMTXC1MD |
443B SAGEBRUSH CELLULAR, INC. |
650 |
|
|
|
| 406-525
| A |
South Wolf Point |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-525
| 2 |
South Wolf Point |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-06-07 |
|
| 406-525
| 3 |
South Wolf Point |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-525
| 5 |
South Wolf Point |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2018-12-17 |
|
| 406-526
| A |
Fort Peck |
MT |
FTPCMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-526
| 3 |
Fort Peck |
MT |
FTPCMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-526
| 7 |
Fort Peck |
MT |
GLSGMTXC1MD |
443B SAGEBRUSH CELLULAR, INC. |
650 |
|
|
|
| 406-526
| 8 |
Fort Peck |
MT |
FTPCMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-527
| A |
Saco |
MT |
SACOMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-527
| 3 |
Saco |
MT |
SACOMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-527
| 6 |
Saco |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2021-07-27 |
|
| 406-527
| 7 |
Saco |
MT |
GLSGMTXC1MD |
443B SAGEBRUSH CELLULAR, INC. |
650 |
|
|
|
| 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 |
BLNGMT934MD |
939H COMMIO, LLC |
650 |
|
2022-07-29 |
|
| 406-530
| 1 |
Laurel |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2006-10-20 |
|
| 406-530
| 2 |
Laurel |
MT |
BLNGMTWE6MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2007-01-05 |
|
| 406-530
| 3 |
Laurel |
MT |
BZMNMTHZDS0 |
746D MONTANA OPTICOM, LLC - MT |
650 |
|
2010-08-16 |
|
| 406-530
| 4 |
Laurel |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2010-11-06 |
|
| 406-530
| 5 |
Laurel |
MT |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-05-31 |
|
| 406-530
| 6 |
Laurel |
MT |
BLNGMTWE6MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2008-05-13 |
|
| 406-530
| 7 |
Laurel |
MT |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2011-08-11 |
|
| 406-530
| 8 |
Laurel |
MT |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2011-08-11 |
|
| 406-530
| 9 |
Laurel |
MT |
BLNGMTMALMD |
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 |
BUTTMT18RS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-533
| 1 |
Butte |
MT |
BUTTMT18RS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-533
| 2 |
Butte |
MT |
BUTTMT18RS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-533
| 3 |
Butte |
MT |
BUTTMT18RS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-533
| 4 |
Butte |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2021-07-18 |
|
| 406-533
| 5 |
Butte |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2007-03-22 |
|
| 406-533
| 6 |
Butte |
MT |
BUTTMT18RS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-533
| 7 |
Butte |
MT |
BUTTMT18RS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-533
| 8 |
Butte |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2007-07-13 |
|
| 406-533
| 9 |
Butte |
MT |
HLNAMTMAX1X |
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 |
BLNGMTWE6MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2006-09-01 |
|
| 406-534
| 1 |
Billings |
MT |
BLNGMT93HMD |
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2006-03-26 |
|
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Last updated: Sun, 17 May 2026 03:26:51 UTC
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