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 |
| 406-404
| 8 |
Bozeman |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-05-14 |
|
| 406-404
| 9 |
Bozeman |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2014-10-22 |
|
| 406-405
| A |
Libby |
MT |
CRALIDXXX7X |
453F ONVOY, LLC - MT |
960 |
|
|
|
| 406-405
| 0 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
2022-12-13 |
|
| 406-405
| 1 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
2023-07-28 |
|
| 406-405
| 2 |
Libby |
MT |
|
453F ONVOY, LLC - MT |
960 |
|
2022-11-06 |
|
| 406-405
| 3 |
Libby |
MT |
|
624H ONVOY SPECTRUM, LLC |
960 |
|
2022-11-06 |
|
| 406-405
| 4 |
Libby |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
960 |
|
2023-05-14 |
|
| 406-405
| 5 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
2023-12-29 |
|
| 406-405
| 6 |
Libby |
MT |
|
453F ONVOY, LLC - MT |
960 |
|
2024-04-14 |
|
| 406-405
| 7 |
Libby |
MT |
|
453F ONVOY, LLC - MT |
960 |
|
2024-09-29 |
|
| 406-405
| 8 |
Libby |
MT |
|
453F ONVOY, LLC - MT |
960 |
|
2023-08-20 |
|
| 406-405
| 9 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
2024-08-27 |
|
| 406-406
| A |
Missoula |
MT |
MSSLMTMADS3 |
509K LIVEWIRE TELECOM, LLC |
648 |
|
2025-02-01 |
|
| 406-406
| 0 |
Missoula |
MT |
|
509K LIVEWIRE TELECOM, LLC |
648 |
|
2025-02-01 |
|
| 406-406
| 1 |
Missoula |
MT |
|
509K LIVEWIRE TELECOM, LLC |
648 |
|
2025-02-01 |
|
| 406-406
| 2 |
Missoula |
MT |
|
509K LIVEWIRE TELECOM, LLC |
648 |
|
2025-02-01 |
|
| 406-406
| 3 |
Missoula |
MT |
|
509K LIVEWIRE TELECOM, LLC |
648 |
|
2025-02-01 |
|
| 406-406
| 4 |
Missoula |
MT |
|
509K LIVEWIRE TELECOM, LLC |
648 |
|
2025-02-01 |
|
| 406-406
| 5 |
Missoula |
MT |
|
509K LIVEWIRE TELECOM, LLC |
648 |
|
2025-02-01 |
|
| 406-406
| 6 |
Missoula |
MT |
|
509K LIVEWIRE TELECOM, LLC |
648 |
|
2025-02-01 |
|
| 406-406
| 7 |
Missoula |
MT |
|
509K LIVEWIRE TELECOM, LLC |
648 |
|
2025-02-01 |
|
| 406-406
| 8 |
Missoula |
MT |
|
509K LIVEWIRE TELECOM, LLC |
648 |
|
2025-02-01 |
|
| 406-406
| 9 |
Missoula |
MT |
|
509K LIVEWIRE TELECOM, LLC |
648 |
|
2025-02-01 |
|
| 406-407
| A |
Kalispell |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-407
| 0 |
Kalispell |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2010-10-14 |
|
| 406-407
| 1 |
Kalispell |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2011-02-06 |
|
| 406-407
| 2 |
Kalispell |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2011-03-07 |
|
| 406-407
| 3 |
Kalispell |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2011-05-05 |
|
| 406-407
| 4 |
Kalispell |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2011-07-07 |
|
| 406-407
| 5 |
Kalispell |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2011-07-28 |
|
| 406-407
| 6 |
Kalispell |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2010-10-26 |
|
| 406-407
| 7 |
Kalispell |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2011-07-01 |
|
| 406-407
| 8 |
Kalispell |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2011-07-08 |
|
| 406-407
| 9 |
Kalispell |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2012-04-26 |
|
| 406-408
| A |
Hays |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-408
| 0 |
Hays |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2019-11-29 |
|
| 406-409
| A |
Billings |
MT |
BLNGMTASX0X |
425J CSC WIRELESS, LLC |
650 |
|
|
|
| 406-409
| 0 |
Billings |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2021-01-17 |
|
| 406-409
| 1 |
Billings |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2021-04-22 |
|
| 406-409
| 2 |
Billings |
MT |
|
425J CSC WIRELESS, LLC |
650 |
|
2019-07-20 |
|
| 406-409
| 3 |
Billings |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2021-07-05 |
|
| 406-409
| 4 |
Billings |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2019-09-15 |
|
| 406-409
| 5 |
Billings |
MT |
|
6529 T-MOBILE USA, INC. |
650 |
|
2023-01-24 |
|
| 406-409
| 6 |
Billings |
MT |
|
6529 T-MOBILE USA, INC. |
650 |
|
2024-01-26 |
|
| 406-409
| 7 |
Billings |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2021-07-05 |
|
| 406-409
| 8 |
Billings |
MT |
|
6529 T-MOBILE USA, INC. |
650 |
|
2020-10-26 |
|
| 406-409
| 9 |
Billings |
MT |
|
6529 T-MOBILE USA, INC. |
650 |
|
2020-10-26 |
|
| 406-410
| A |
Helena |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-410
| 0 |
Helena |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
<< 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 >>
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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