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 |
| 406-861
| 8 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 9 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-862
| A |
Whitefish |
MT |
WHFSMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-863
| A |
Whitefish |
MT |
WHFSMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-863
| 0 |
Whitefish |
MT |
WHFSMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-863
| 1 |
Whitefish |
MT |
WHFSMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-863
| 2 |
Whitefish |
MT |
WHFSMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-863
| 3 |
Whitefish |
MT |
WHFSMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-863
| 4 |
Whitefish |
MT |
WHFSMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-863
| 5 |
Whitefish |
MT |
MSSLMTMAYMD |
771G TELEPORT COMMUNICATIONS AMERICA MT - LLC |
648 |
|
2015-05-22 |
|
| 406-863
| 6 |
Whitefish |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-09-15 |
|
| 406-863
| 7 |
Whitefish |
MT |
HLNAMTMAUMD |
508J CENTURYLINK COMMUNICATIONS, LLC |
648 |
|
2014-05-31 |
|
| 406-863
| 8 |
Whitefish |
MT |
PLSNMTPC1MD |
986F WESTERN MONTANA COMMUNITYTEL INC. - MT |
648 |
|
2021-12-18 |
|
| 406-863
| 9 |
Whitefish |
MT |
WHFSMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-864
| A |
South Alberton |
MT |
ALTNMTXCRS1 |
2235 BLACKFOOT TEL. COOP., INC. |
648 |
|
|
|
| 406-865
| A |
Dillon |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-865
| 0 |
Dillon |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-865
| 1 |
Dillon |
MT |
GRFLMTMAKMD |
624H ONVOY SPECTRUM, LLC |
648 |
|
2025-01-02 |
|
| 406-865
| 2 |
Dillon |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-865
| 3 |
Dillon |
MT |
HLNAMTMAMMD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
648 |
|
2010-10-01 |
|
| 406-865
| 4 |
Dillon |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-865
| 6 |
Dillon |
MT |
GRFLMTMAYMD |
145J TERRA NOVA TELECOM INC. |
648 |
|
2026-07-05 |
|
| 406-865
| 7 |
Dillon |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2011-07-01 |
|
| 406-865
| 8 |
Dillon |
MT |
GRFLMTMAHMD |
073H TELNYX LLC |
648 |
|
2020-08-07 |
|
| 406-866
| A |
Great Falls |
MT |
ULM MTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-866
| 0 |
Great Falls |
MT |
HLNAMTHH5MD |
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
2006-03-13 |
|
| 406-866
| 1 |
Great Falls |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2024-04-28 |
|
| 406-866
| 2 |
Great Falls |
MT |
ULM MTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-866
| 3 |
Great Falls |
MT |
ULM MTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-866
| 6 |
Great Falls |
MT |
GRFLMTMA69Z |
490J BOOST SUBSCRIBERCO L.L.C. |
648 |
|
2023-08-21 |
|
| 406-866
| 8 |
Great Falls |
MT |
GRFLMTMAGMD |
6529 T-MOBILE USA, INC. |
648 |
|
2023-10-23 |
|
| 406-867
| A |
Billings |
MT |
BLNGMT93IMD |
700J WAVENATION, LLC |
650 |
|
|
|
| 406-867
| 0 |
Billings |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2022-11-12 |
|
| 406-867
| 1 |
Billings |
MT |
BLNGMT20PS0 |
4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
650 |
|
|
|
| 406-867
| 2 |
Billings |
MT |
BLNGMT20PS0 |
4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
650 |
|
|
|
| 406-867
| 3 |
Billings |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2022-11-12 |
|
| 406-867
| 4 |
Billings |
MT |
BLNGMT20PS0 |
4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
650 |
|
|
|
| 406-867
| 5 |
Billings |
MT |
BLNGMT93IMD |
700J WAVENATION, LLC |
650 |
|
2026-02-03 |
|
| 406-867
| 6 |
Billings |
MT |
BLNGMT20PS0 |
4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
650 |
|
|
|
| 406-867
| 7 |
Billings |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2022-11-12 |
|
| 406-867
| 8 |
Billings |
MT |
BLNGMT20PS0 |
4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
650 |
|
|
|
| 406-867
| 9 |
Billings |
MT |
BLNGMTWEDMD |
624H ONVOY SPECTRUM, LLC |
650 |
|
2022-11-12 |
|
| 406-868
| A |
Great Falls |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-869
| A |
Billings |
MT |
BLNGMT20PS0 |
4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
650 |
|
|
|
| 406-870
| A |
Great Falls |
MT |
GRFLMTMA5MD |
994E BANDWIDTH.COM CLEC, LLC - MT |
648 |
|
|
|
| 406-870
| 0 |
Great Falls |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-870
| 1 |
Great Falls |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-870
| 2 |
Great Falls |
MT |
GRFLMTMA5MD |
994E BANDWIDTH.COM CLEC, LLC - MT |
648 |
|
2025-10-27 |
|
| 406-871
| A |
Kalispell |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-872
| A |
Polson |
MT |
PLSNMTPC1MD |
986F WESTERN MONTANA COMMUNITYTEL INC. - 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 98 >>
Last updated: Thu, 16 Jul 2026 02:21:55 UTC
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