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 |
| 406-730
| 7 |
Whitefish |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2010-11-28 |
|
| 406-730
| 8 |
Whitefish |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
2013-11-11 |
|
| 406-730
| 9 |
Whitefish |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2021-03-28 |
|
| 406-731
| A |
Great Falls |
MT |
|
700J WAVENATION, LLC |
648 |
|
|
|
| 406-731
| 0 |
Great Falls |
MT |
|
700J WAVENATION, LLC |
648 |
|
2025-10-05 |
|
| 406-731
| 1 |
Great Falls |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-731
| 2 |
Great Falls |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-731
| 3 |
Great Falls |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-731
| 4 |
Great Falls |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-731
| 5 |
Great Falls |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-731
| 6 |
Great Falls |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-731
| 7 |
Great Falls |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-731
| 8 |
Great Falls |
MT |
|
9636 QWEST CORPORATION |
648 |
|
2004-07-12 |
|
| 406-732
| A |
St Mary |
MT |
STMYMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-732
| 0 |
St Mary |
MT |
|
073H TELNYX LLC |
648 |
|
2020-08-13 |
|
| 406-732
| 1 |
St Mary |
MT |
|
624H ONVOY SPECTRUM, LLC |
648 |
|
2020-11-08 |
|
| 406-732
| 2 |
St Mary |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2019-09-15 |
|
| 406-732
| 3 |
St Mary |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
648 |
|
2014-05-24 |
|
| 406-732
| 4 |
St Mary |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-732
| 5 |
St Mary |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-732
| 6 |
St Mary |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2007-03-19 |
|
| 406-732
| 7 |
St Mary |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2019-09-15 |
|
| 406-732
| 8 |
St Mary |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2011-10-24 |
|
| 406-732
| 9 |
St Mary |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-733
| A |
Highwood |
MT |
FRFDMTXCDS1 |
2255 3 RIVERS TEL. COOP., INC. |
648 |
|
|
|
| 406-734
| A |
Carter |
MT |
FRFDMTXCDS1 |
2255 3 RIVERS TEL. COOP., INC. |
648 |
|
|
|
| 406-735
| A |
Geyser |
MT |
FRFDMTXCDS1 |
2255 3 RIVERS TEL. COOP., INC. |
648 |
|
|
|
| 406-736
| A |
Stockett |
MT |
FRFDMTXCDS1 |
2255 3 RIVERS TEL. COOP., INC. |
648 |
|
|
|
| 406-736
| 0 |
Stockett |
MT |
|
2255 3 RIVERS TEL. COOP., INC. |
648 |
|
|
|
| 406-736
| 1 |
Stockett |
MT |
|
2255 3 RIVERS TEL. COOP., INC. |
648 |
|
|
|
| 406-736
| 2 |
Stockett |
MT |
|
490J DISH WIRELESS, LLC |
648 |
|
2024-04-28 |
|
| 406-736
| 4 |
Stockett |
MT |
|
2255 3 RIVERS TEL. COOP., INC. |
648 |
|
|
|
| 406-736
| 5 |
Stockett |
MT |
|
2255 3 RIVERS TEL. COOP., INC. |
648 |
|
|
|
| 406-736
| 6 |
Stockett |
MT |
|
2255 3 RIVERS TEL. COOP., INC. |
648 |
|
|
|
| 406-736
| 7 |
Stockett |
MT |
|
2255 3 RIVERS TEL. COOP., INC. |
648 |
|
|
|
| 406-736
| 8 |
Stockett |
MT |
|
2255 3 RIVERS TEL. COOP., INC. |
648 |
|
|
|
| 406-736
| 9 |
Stockett |
MT |
|
2255 3 RIVERS TEL. COOP., INC. |
648 |
|
|
|
| 406-737
| A |
Geraldine |
MT |
FTBNMTXCDS0 |
3310 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-738
| A |
Raynesford |
MT |
FRFDMTXCDS1 |
2255 3 RIVERS TEL. COOP., INC. |
648 |
|
|
|
| 406-739
| A |
Loma |
MT |
HAVRMTXCDS0 |
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-740
| A |
Colstrip |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-740
| 0 |
Colstrip |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-740
| 1 |
Colstrip |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-740
| 2 |
Colstrip |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-740
| 3 |
Colstrip |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2023-05-28 |
|
| 406-740
| 4 |
Colstrip |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2023-12-11 |
|
| 406-740
| 5 |
Colstrip |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2021-02-11 |
|
| 406-740
| 6 |
Colstrip |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2020-01-05 |
|
| 406-740
| 7 |
Colstrip |
MT |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2016-08-10 |
|
| 406-740
| 8 |
Colstrip |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2019-10-28 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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