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 |
| 406-518
| 4 |
Gallatin Gateway |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2019-09-15 |
|
| 406-518
| 5 |
Gallatin Gateway |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2020-11-10 |
|
| 406-518
| 6 |
Gallatin Gateway |
MT |
|
624H ONVOY SPECTRUM, LLC |
650 |
|
2025-02-17 |
|
| 406-518
| 7 |
Gallatin Gateway |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2011-11-24 |
|
| 406-518
| 8 |
Gallatin Gateway |
MT |
|
073H TELNYX LLC |
650 |
|
2019-10-04 |
|
| 406-518
| 9 |
Gallatin Gateway |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2021-07-05 |
|
| 406-519
| A |
Missoula |
MT |
GRFLMTMANMD |
515J IP HORIZON LLC |
648 |
|
|
|
| 406-519
| 0 |
Missoula |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-519
| 1 |
Missoula |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-519
| 2 |
Missoula |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
648 |
|
2021-06-27 |
|
| 406-519
| 3 |
Missoula |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-519
| 4 |
Missoula |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2021-03-26 |
|
| 406-519
| 5 |
Missoula |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2021-03-26 |
|
| 406-519
| 6 |
Missoula |
MT |
|
939H COMMIO, LLC |
648 |
|
2023-09-22 |
|
| 406-519
| 7 |
Missoula |
MT |
|
515J IP HORIZON LLC |
648 |
|
2021-10-22 |
|
| 406-519
| 8 |
Missoula |
MT |
|
6529 T-MOBILE USA, INC. |
648 |
|
2022-05-20 |
|
| 406-519
| 9 |
Missoula |
MT |
|
6529 T-MOBILE USA, INC. |
648 |
|
2022-05-20 |
|
| 406-520
| A |
Absarokee |
MT |
BLNGMT93BMD |
321J HD CARRIER LLC |
650 |
|
|
|
| 406-520
| 0 |
Absarokee |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-08-29 |
|
| 406-520
| 5 |
Absarokee |
MT |
|
321J HD CARRIER LLC |
650 |
|
2020-09-27 |
|
| 406-520
| 6 |
Absarokee |
MT |
|
321J HD CARRIER LLC |
650 |
|
2020-11-01 |
|
| 406-521
| A |
Townsend |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-521
| 0 |
Townsend |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-521
| 1 |
Townsend |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2012-12-17 |
|
| 406-521
| 2 |
Townsend |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2019-01-17 |
|
| 406-521
| 3 |
Townsend |
MT |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
648 |
|
2017-08-07 |
|
| 406-521
| 4 |
Townsend |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2019-09-15 |
|
| 406-521
| 5 |
Townsend |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2019-06-21 |
|
| 406-521
| 6 |
Townsend |
MT |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
648 |
|
2014-05-24 |
|
| 406-521
| 7 |
Townsend |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2011-10-24 |
|
| 406-521
| 8 |
Townsend |
MT |
|
073H TELNYX LLC |
648 |
|
2020-08-13 |
|
| 406-521
| 9 |
Townsend |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2021-03-07 |
|
| 406-522
| A |
Bozeman |
MT |
BZMNMTMADS0 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-523
| A |
Missoula |
MT |
MSSLMTMADS0 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-524
| A |
Valley Industrial Park |
MT |
GAFBMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-524
| 3 |
Valley Industrial Park |
MT |
|
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-524
| 7 |
Valley Industrial Park |
MT |
|
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-524
| 8 |
Valley Industrial Park |
MT |
|
443B SAGEBRUSH CELLULAR, INC. |
650 |
|
|
|
| 406-525
| A |
South Wolf Point |
MT |
WGLNMTXCDS2 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-525
| 2 |
South Wolf Point |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-06-07 |
|
| 406-525
| 3 |
South Wolf Point |
MT |
|
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-525
| 5 |
South Wolf Point |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2018-12-17 |
|
| 406-526
| A |
Fort Peck |
MT |
FTPCMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-526
| 3 |
Fort Peck |
MT |
|
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-526
| 7 |
Fort Peck |
MT |
|
443B SAGEBRUSH CELLULAR, INC. |
650 |
|
|
|
| 406-526
| 8 |
Fort Peck |
MT |
|
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-527
| A |
Saco |
MT |
SACOMTXCRS1 |
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-527
| 3 |
Saco |
MT |
|
2247 NEMONT TEL COOP INC |
650 |
|
|
|
| 406-527
| 6 |
Saco |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2021-07-27 |
|
| 406-527
| 7 |
Saco |
MT |
|
443B SAGEBRUSH CELLULAR, INC. |
650 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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