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 |
| 406-773
| 7 |
Richey |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-08-29 |
|
| 406-773
| 9 |
Richey |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-774
| A |
Lambert |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-774
| 3 |
Lambert |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-774
| 4 |
Lambert |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2018-12-17 |
|
| 406-774
| 7 |
Lambert |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-774
| 9 |
Lambert |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-775
| A |
Ekalaka |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-775
| 5 |
Ekalaka |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-06-07 |
|
| 406-775
| 6 |
Ekalaka |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-775
| 7 |
Ekalaka |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2018-12-17 |
|
| 406-775
| 8 |
Ekalaka |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-775
| 9 |
Ekalaka |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-776
| A |
Savage |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-777
| A |
Stevensville |
MT |
STVLMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-777
| 0 |
Stevensville |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-777
| 1 |
Stevensville |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-777
| 2 |
Stevensville |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-777
| 3 |
Stevensville |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-777
| 4 |
Stevensville |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-777
| 5 |
Stevensville |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-777
| 6 |
Stevensville |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2021-03-07 |
|
| 406-777
| 7 |
Stevensville |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-777
| 8 |
Stevensville |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2021-03-07 |
|
| 406-777
| 9 |
Stevensville |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-778
| A |
Baker |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-778
| 1 |
Baker |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2018-12-17 |
|
| 406-778
| 2 |
Baker |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-778
| 3 |
Baker |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-778
| 4 |
Baker |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-06-07 |
|
| 406-778
| 5 |
Baker |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-778
| 6 |
Baker |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-778
| 7 |
Baker |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-778
| 8 |
Baker |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-778
| 9 |
Baker |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-779
| A |
Flaxville Rural |
MT |
SFVLMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-779
| 3 |
Flaxville Rural |
MT |
|
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-779
| 7 |
Flaxville Rural |
MT |
|
443B SAGEBRUSH CELLULAR, INC. |
650 |
|
|
|
| 406-779
| 9 |
Flaxville Rural |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-08-29 |
|
| 406-780
| A |
Columbus |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-780
| 0 |
Columbus |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-780
| 1 |
Columbus |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-780
| 2 |
Columbus |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2017-10-21 |
|
| 406-780
| 3 |
Columbus |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2019-09-15 |
|
| 406-780
| 4 |
Columbus |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2019-09-15 |
|
| 406-780
| 5 |
Columbus |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2020-01-05 |
|
| 406-780
| 6 |
Columbus |
MT |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2016-08-10 |
|
| 406-780
| 7 |
Columbus |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2011-10-21 |
|
| 406-780
| 8 |
Columbus |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2019-10-28 |
|
| 406-780
| 9 |
Columbus |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2020-01-05 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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