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 99 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 406-363
| 0 |
Hamilton |
MT |
HMTNMTMADS0 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 1 |
Hamilton |
MT |
HMTNMTMADS0 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 2 |
Hamilton |
MT |
HMTNMTMADS0 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 3 |
Hamilton |
MT |
HMTNMTMADS0 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 4 |
Hamilton |
MT |
HMTNMTMADS0 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 5 |
Hamilton |
MT |
HMTNMTMADS0 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 6 |
Hamilton |
MT |
HMTNMTMADS0 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 7 |
Hamilton |
MT |
HMTNMTMADS0 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-363
| 8 |
Hamilton |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-363
| 9 |
Hamilton |
MT |
HMTNMTMADS0 |
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 |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2021-07-05 |
|
| 406-365
| 1 |
Glendive |
MT |
BLNGMTWE6MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2005-02-21 |
|
| 406-365
| 2 |
Glendive |
MT |
GLNDMTMADS0 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-365
| 3 |
Glendive |
MT |
GLNDMTMADS0 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-365
| 4 |
Glendive |
MT |
GLNDMTMADS0 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-365
| 5 |
Glendive |
MT |
GLNDMTMADS0 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-365
| 6 |
Glendive |
MT |
GLNDMTMADS0 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-365
| 7 |
Glendive |
MT |
GLNDMTMADS0 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-365
| 8 |
Glendive |
MT |
GLNDMTMADS0 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-365
| 9 |
Glendive |
MT |
GLNDMTMADS0 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-366
| A |
Lewistown |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-366
| 0 |
Lewistown |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-366
| 1 |
Lewistown |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-366
| 2 |
Lewistown |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-366
| 3 |
Lewistown |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-366
| 4 |
Lewistown |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-366
| 5 |
Lewistown |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-366
| 6 |
Lewistown |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-366
| 7 |
Lewistown |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2026-06-19 |
|
| 406-366
| 8 |
Lewistown |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2026-07-01 |
|
| 406-366
| 9 |
Lewistown |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-367
| A |
North Glasgow |
MT |
NGLSMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-368
| A |
Canyon Creek |
MT |
CNCKMTXCRS1 |
2244 LINCOLN TEL. CO., INC. |
648 |
|
|
|
| 406-369
| A |
Hamilton |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-369
| 0 |
Hamilton |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-369
| 1 |
Hamilton |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-369
| 2 |
Hamilton |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-369
| 3 |
Hamilton |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-369
| 4 |
Hamilton |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-369
| 5 |
Hamilton |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2008-11-18 |
|
| 406-369
| 6 |
Hamilton |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2006-10-19 |
|
| 406-369
| 7 |
Hamilton |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2020-11-08 |
|
| 406-369
| 8 |
Hamilton |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2010-11-06 |
|
| 406-369
| 9 |
Hamilton |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-03-07 |
|
| 406-370
| A |
Missoula |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-371
| A |
Billings |
MT |
BLNGMTWEAMD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
650 |
|
|
|
| 406-371
| 0 |
Billings |
MT |
|
6529 T-MOBILE USA, INC. |
650 |
|
2026-09-18 |
|
| 406-371
| 1 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2006-06-25 |
|
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Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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