Local Calling Guide
Area code/prefix search
NPA: 406
[Rate centres in NPA 406]
[Dial plan for NPA 406]
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| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 406-796
| 4 |
Wibaux |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2021-07-08 |
|
| 406-796
| 5 |
Wibaux |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2025-01-23 |
|
| 406-796
| 7 |
Wibaux |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2023-04-27 |
|
| 406-796
| 9 |
Wibaux |
MT |
WIBXMTAARS0 |
7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. |
650 |
|
|
|
| 406-797
| A |
Anaconda |
MT |
OPRTMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-797
| 0 |
Anaconda |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-797
| 1 |
Anaconda |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-03-07 |
|
| 406-797
| 2 |
Anaconda |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-03-07 |
|
| 406-797
| 3 |
Anaconda |
MT |
OPRTMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-797
| 4 |
Anaconda |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2020-11-08 |
|
| 406-797
| 5 |
Anaconda |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2006-10-19 |
|
| 406-797
| 6 |
Anaconda |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-10-28 |
|
| 406-797
| 7 |
Anaconda |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2011-10-21 |
|
| 406-797
| 8 |
Anaconda |
MT |
OPRTMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-797
| 9 |
Anaconda |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-798
| A |
West Sidney |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-799
| A |
Great Falls |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-799
| 0 |
Great Falls |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-799
| 1 |
Great Falls |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-799
| 2 |
Great Falls |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-799
| 3 |
Great Falls |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-799
| 4 |
Great Falls |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-799
| 5 |
Great Falls |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-799
| 6 |
Great Falls |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-799
| 7 |
Great Falls |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-799
| 8 |
Great Falls |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-799
| 9 |
Great Falls |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-800
| A |
Bridger |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
|
|
| 406-800
| 0 |
Bridger |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2014-01-10 |
|
| 406-800
| 1 |
Bridger |
MT |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-03-21 |
|
| 406-800
| 2 |
Bridger |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2021-03-07 |
|
| 406-800
| 4 |
Bridger |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2020-11-10 |
|
| 406-800
| 5 |
Bridger |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2020-11-10 |
|
| 406-800
| 6 |
Bridger |
MT |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2021-06-12 |
|
| 406-800
| 7 |
Bridger |
MT |
BLNGMTWE8MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2016-08-10 |
|
| 406-800
| 8 |
Bridger |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2014-01-10 |
|
| 406-800
| 9 |
Bridger |
MT |
BLNGMT933MD |
073H TELNYX LLC |
650 |
|
2018-07-25 |
|
| 406-802
| A |
Hamilton |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-802
| 0 |
Hamilton |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2021-12-14 |
|
| 406-802
| 1 |
Hamilton |
MT |
GRFLMTMAHMD |
073H TELNYX LLC |
648 |
|
2020-08-13 |
|
| 406-802
| 2 |
Hamilton |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2019-05-24 |
|
| 406-802
| 3 |
Hamilton |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2020-02-23 |
|
| 406-802
| 4 |
Hamilton |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2015-07-17 |
|
| 406-802
| 5 |
Hamilton |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-10-28 |
|
| 406-802
| 6 |
Hamilton |
MT |
MSSLMTMA0MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
648 |
|
2015-09-10 |
|
| 406-802
| 7 |
Hamilton |
MT |
HLNAMTMAUMD |
508J CENTURYLINK COMMUNICATIONS, LLC |
648 |
|
2014-05-24 |
|
| 406-802
| 8 |
Hamilton |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2022-03-20 |
|
| 406-802
| 9 |
Hamilton |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-03-07 |
|
| 406-804
| A |
Gardiner |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
|
|
| 406-804
| 0 |
Gardiner |
MT |
BLNGMT933MD |
073H TELNYX LLC |
650 |
|
2019-10-21 |
|
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Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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