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 |
| 406-952
| 3 |
Great Falls |
MT |
HLNAMTMAMMD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
648 |
|
2006-11-30 |
|
| 406-952
| 4 |
Great Falls |
MT |
HLNAMTHH5MD |
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
2005-07-17 |
|
| 406-952
| 5 |
Great Falls |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2021-10-30 |
|
| 406-952
| 6 |
Great Falls |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2021-10-30 |
|
| 406-952
| 7 |
Great Falls |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2020-08-05 |
|
| 406-952
| 8 |
Great Falls |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2020-08-05 |
|
| 406-952
| 9 |
Great Falls |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2020-08-05 |
|
| 406-953
| A |
Hardin |
MT |
|
443B SAGEBRUSH CELLULAR, INC. |
650 |
|
|
|
| 406-953
| 0 |
Hardin |
MT |
BLNGMTWE6MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
|
|
| 406-953
| 1 |
Hardin |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2025-11-24 |
|
| 406-953
| 2 |
Hardin |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2021-03-07 |
|
| 406-953
| 3 |
Hardin |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2021-03-07 |
|
| 406-953
| 4 |
Hardin |
MT |
BLNGMTWE6MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
|
|
| 406-953
| 5 |
Hardin |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2020-01-05 |
|
| 406-953
| 6 |
Hardin |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2020-01-05 |
|
| 406-953
| 8 |
Hardin |
MT |
|
443B SAGEBRUSH CELLULAR, INC. |
650 |
|
2019-01-10 |
|
| 406-953
| 9 |
Hardin |
MT |
|
443B SAGEBRUSH CELLULAR, INC. |
650 |
|
2019-01-10 |
|
| 406-954
| A |
Roy |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-954
| 0 |
Roy |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-954
| 2 |
Roy |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2026-04-30 |
|
| 406-955
| A |
Kalispell |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2024-01-18 |
|
| 406-955
| 0 |
Kalispell |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2025-11-25 |
|
| 406-955
| 1 |
Kalispell |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2024-08-22 |
|
| 406-955
| 2 |
Kalispell |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2025-05-29 |
|
| 406-955
| 3 |
Kalispell |
MT |
|
6529 T-MOBILE USA, INC. |
648 |
|
2025-10-12 |
|
| 406-955
| 4 |
Kalispell |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2025-05-29 |
|
| 406-955
| 5 |
Kalispell |
MT |
MSSLMTMACMD |
5562 METROPCS, INC. |
648 |
|
2024-10-14 |
|
| 406-955
| 6 |
Kalispell |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2024-02-01 |
|
| 406-955
| 7 |
Kalispell |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2025-05-29 |
|
| 406-955
| 8 |
Kalispell |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2024-01-19 |
|
| 406-955
| 9 |
Kalispell |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2024-01-19 |
|
| 406-956
| A |
Baker |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-956
| 0 |
Baker |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2010-12-17 |
|
| 406-957
| A |
Terry |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-957
| 0 |
Terry |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-957
| 1 |
Terry |
MT |
BLNGMT93DS0 |
588H AIRUS, INC. - MT |
650 |
|
2020-03-01 |
|
| 406-957
| 2 |
Terry |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2021-03-07 |
|
| 406-957
| 3 |
Terry |
MT |
BLNGMTWE6MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2023-02-27 |
|
| 406-957
| 6 |
Terry |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2019-09-15 |
|
| 406-957
| 7 |
Terry |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2019-09-15 |
|
| 406-957
| 8 |
Terry |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-957
| 9 |
Terry |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-960
| A |
Dillon |
MT |
MSSLMTMA0MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
648 |
|
|
|
| 406-960
| 0 |
Dillon |
MT |
MSSLMTMA0MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
648 |
|
|
|
| 406-960
| 4 |
Dillon |
MT |
MSSLMTMA0MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
648 |
|
|
|
| 406-961
| A |
Hamilton |
MT |
CRVSMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-961
| 0 |
Hamilton |
MT |
CRVSMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-961
| 1 |
Hamilton |
MT |
CRVSMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-961
| 2 |
Hamilton |
MT |
|
145J TERRA NOVA TELECOM INC. |
648 |
|
2025-12-08 |
|
| 406-961
| 3 |
Hamilton |
MT |
CRVSMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
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Last updated: Sun, 17 May 2026 03:26:51 UTC
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