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 |
| 406-845
| 7 |
Cut Bank |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2011-10-21 |
|
| 406-845
| 8 |
Cut Bank |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2012-11-22 |
|
| 406-845
| 9 |
Cut Bank |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2013-02-04 |
|
| 406-846
| A |
Deer Lodge |
MT |
DRLDMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-846
| 0 |
Deer Lodge |
MT |
BLNGMT939MD |
145J TERRA NOVA TELECOM INC. |
648 |
|
2026-07-05 |
|
| 406-846
| 1 |
Deer Lodge |
MT |
DRLDMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-846
| 2 |
Deer Lodge |
MT |
DRLDMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-846
| 3 |
Deer Lodge |
MT |
DRLDMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-846
| 4 |
Deer Lodge |
MT |
HLNAMTHH5MD |
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
2007-05-15 |
|
| 406-846
| 5 |
Deer Lodge |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2006-10-19 |
|
| 406-846
| 6 |
Deer Lodge |
MT |
|
145J TERRA NOVA TELECOM INC. |
648 |
|
2025-10-09 |
|
| 406-846
| 7 |
Deer Lodge |
MT |
DRLDMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-846
| 9 |
Deer Lodge |
MT |
DRLDMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-847
| A |
Noxon |
MT |
NOXNMTXCRS1 |
2235 BLACKFOOT TEL. COOP., INC. |
648 |
|
|
|
| 406-848
| A |
Gardiner |
MT |
GRNRMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-848
| 0 |
Gardiner |
MT |
BLNGMTWE6MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2004-11-13 |
|
| 406-848
| 1 |
Gardiner |
MT |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2009-02-13 |
|
| 406-848
| 2 |
Gardiner |
MT |
GRNRMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-848
| 3 |
Gardiner |
MT |
BLNGMTMAXMD |
6529 T-MOBILE USA, INC. |
650 |
|
2023-10-09 |
|
| 406-848
| 4 |
Gardiner |
MT |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2014-05-25 |
|
| 406-848
| 5 |
Gardiner |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2011-10-21 |
|
| 406-848
| 6 |
Gardiner |
MT |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2007-03-19 |
|
| 406-848
| 7 |
Gardiner |
MT |
GRNRMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-848
| 8 |
Gardiner |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2025-02-17 |
|
| 406-848
| 9 |
Gardiner |
MT |
GRNRMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-849
| A |
Elmo |
MT |
ELMOMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-849
| 0 |
Elmo |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2021-02-27 |
|
| 406-849
| 1 |
Elmo |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2021-02-27 |
|
| 406-849
| 2 |
Elmo |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-849
| 3 |
Elmo |
MT |
MSSLMTMA0MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
648 |
|
2023-02-27 |
|
| 406-849
| 4 |
Elmo |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2023-09-12 |
|
| 406-849
| 5 |
Elmo |
MT |
ELMOMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-849
| 6 |
Elmo |
MT |
ELMOMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-849
| 7 |
Elmo |
MT |
HLNAMTMAUMD |
508J CENTURYLINK COMMUNICATIONS, LLC |
648 |
|
2014-05-24 |
|
| 406-849
| 8 |
Elmo |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2023-01-05 |
|
| 406-849
| 9 |
Elmo |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2023-12-13 |
|
| 406-850
| A |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-850
| 0 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-850
| 1 |
Billings |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2008-10-24 |
|
| 406-850
| 2 |
Billings |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2008-11-07 |
|
| 406-850
| 3 |
Billings |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2009-02-23 |
|
| 406-850
| 4 |
Billings |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2009-03-16 |
|
| 406-850
| 5 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2009-05-07 |
|
| 406-850
| 6 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2009-05-07 |
|
| 406-850
| 7 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2014-10-23 |
|
| 406-850
| 8 |
Billings |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2009-08-17 |
|
| 406-850
| 9 |
Billings |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2009-09-14 |
|
| 406-851
| A |
Miles City |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-851
| 0 |
Miles City |
MT |
BLNGMT934MD |
939H COMMIO, LLC |
650 |
|
2022-07-29 |
|
| 406-851
| 1 |
Miles City |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2014-08-15 |
|
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Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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