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 |
| 406-482
| 0 |
Sidney |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2025-01-19 |
|
| 406-482
| 1 |
Sidney |
MT |
SDNYMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-482
| 2 |
Sidney |
MT |
SDNYMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-482
| 3 |
Sidney |
MT |
SDNYMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-482
| 4 |
Sidney |
MT |
SDNYMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-482
| 5 |
Sidney |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2026-01-17 |
|
| 406-482
| 6 |
Sidney |
MT |
SDNYMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-482
| 8 |
Sidney |
MT |
SDNYMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-482
| 9 |
Sidney |
MT |
SDNYMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-483
| A |
Dagmar |
MT |
DGMRMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-484
| A |
Crooked Creek |
MT |
BASNWYXCDS1 |
2296 TRI-COUNTY TEL. ASSN., INC. |
654 |
|
|
|
| 406-484
| 0 |
Crooked Creek |
MT |
BASNWYXCDS1 |
2296 TRI-COUNTY TEL. ASSN., INC. |
654 |
|
|
|
| 406-484
| 2 |
Crooked Creek |
MT |
BASNWYXCDS1 |
2296 TRI-COUNTY TEL. ASSN., INC. |
654 |
|
|
|
| 406-484
| 4 |
Crooked Creek |
MT |
|
145J TERRA NOVA TELECOM INC. |
654 |
|
2025-08-29 |
|
| 406-484
| 6 |
Crooked Creek |
MT |
BASNWYXCDS1 |
2296 TRI-COUNTY TEL. ASSN., INC. |
654 |
|
|
|
| 406-484
| 9 |
Crooked Creek |
MT |
BASNWYXCDS1 |
2296 TRI-COUNTY TEL. ASSN., INC. |
654 |
|
|
|
| 406-485
| A |
Circle |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-485
| 1 |
Circle |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-485
| 2 |
Circle |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-485
| 3 |
Circle |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-485
| 5 |
Circle |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2018-12-17 |
|
| 406-485
| 7 |
Circle |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-485
| 8 |
Circle |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-06-07 |
|
| 406-485
| 9 |
Circle |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-486
| A |
Fallon |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-487
| A |
Scobey |
MT |
SCBYMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-487
| 2 |
Scobey |
MT |
SCBYMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-487
| 5 |
Scobey |
MT |
SCBYMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-488
| A |
Sidney |
MT |
SDNYMTAORS0 |
7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. |
650 |
|
|
|
| 406-489
| A |
Sidney |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-489
| 0 |
Sidney |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-489
| 1 |
Sidney |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-489
| 2 |
Sidney |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-489
| 3 |
Sidney |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-489
| 5 |
Sidney |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2023-06-24 |
|
| 406-489
| 7 |
Sidney |
MT |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2026-06-19 |
|
| 406-489
| 8 |
Sidney |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2025-01-23 |
|
| 406-489
| 9 |
Sidney |
MT |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2025-10-10 |
|
| 406-490
| A |
Butte |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-491
| A |
Butte |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-491
| 0 |
Butte |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-491
| 1 |
Butte |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-491
| 2 |
Butte |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-491
| 3 |
Butte |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-491
| 4 |
Butte |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-491
| 5 |
Butte |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-491
| 6 |
Butte |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-491
| 7 |
Butte |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-491
| 8 |
Butte |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2016-01-29 |
|
| 406-491
| 9 |
Butte |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2023-10-02 |
|
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Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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