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 |
| 406-929
| 6 |
Hungry Horse |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2023-09-18 |
|
| 406-929
| 7 |
Hungry Horse |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2007-09-21 |
|
| 406-929
| 8 |
Hungry Horse |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2011-04-06 |
|
| 406-929
| 9 |
Hungry Horse |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2023-09-18 |
|
| 406-930
| A |
Big Timber |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-930
| 0 |
Big Timber |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-930
| 1 |
Big Timber |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-930
| 2 |
Big Timber |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-930
| 3 |
Big Timber |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2023-12-29 |
|
| 406-930
| 4 |
Big Timber |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2026-01-04 |
|
| 406-930
| 6 |
Big Timber |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-06-07 |
|
| 406-930
| 9 |
Big Timber |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2024-06-14 |
|
| 406-931
| A |
Big Timber |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-931
| 0 |
Big Timber |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-931
| 1 |
Big Timber |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2019-01-11 |
|
| 406-931
| 9 |
Big Timber |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2025-11-13 |
|
| 406-932
| A |
Big Timber |
MT |
BGTMMTXCDS0 |
2257 TRIANGLE TEL. COOP. ASSN., INC. |
650 |
|
|
|
| 406-932
| 0 |
Big Timber |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
650 |
|
|
|
| 406-932
| 2 |
Big Timber |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
650 |
|
|
|
| 406-932
| 3 |
Big Timber |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
650 |
|
|
|
| 406-932
| 4 |
Big Timber |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
650 |
|
|
|
| 406-932
| 5 |
Big Timber |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
650 |
|
|
|
| 406-932
| 6 |
Big Timber |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
650 |
|
|
|
| 406-932
| 7 |
Big Timber |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2017-05-20 |
|
| 406-932
| 8 |
Big Timber |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
650 |
|
|
|
| 406-933
| A |
Helena |
MT |
CLNCMTMARS1 |
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-933
| 3 |
Helena |
MT |
|
145J TERRA NOVA TELECOM INC. |
648 |
|
2025-10-06 |
|
| 406-933
| 5 |
Helena |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-933
| 8 |
Helena |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-933
| 9 |
Helena |
MT |
|
9636 QWEST CORPORATION |
648 |
|
|
|
| 406-934
| A |
Miles City |
MT |
|
743G WIDE VOICE, LLC - MT |
650 |
|
|
|
| 406-934
| 0 |
Miles City |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-934
| 1 |
Miles City |
MT |
|
743G WIDE VOICE, LLC - MT |
650 |
|
2025-07-22 |
|
| 406-934
| 8 |
Miles City |
MT |
|
624H ONVOY SPECTRUM, LLC |
650 |
|
2025-01-16 |
|
| 406-934
| 9 |
Miles City |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-935
| A |
Broadus |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-935
| 0 |
Broadus |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-935
| 2 |
Broadus |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-06-07 |
|
| 406-935
| 3 |
Broadus |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2018-12-17 |
|
| 406-935
| 5 |
Broadus |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2026-01-04 |
|
| 406-935
| 9 |
Broadus |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-936
| A |
Clyde Park |
MT |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
|
|
| 406-936
| 0 |
Clyde Park |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-09-14 |
|
| 406-936
| 1 |
Clyde Park |
MT |
|
073H TELNYX LLC |
650 |
|
2018-07-25 |
|
| 406-936
| 2 |
Clyde Park |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2021-03-07 |
|
| 406-936
| 3 |
Clyde Park |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2019-09-15 |
|
| 406-936
| 4 |
Clyde Park |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2019-10-28 |
|
| 406-936
| 5 |
Clyde Park |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2021-03-07 |
|
| 406-936
| 6 |
Clyde Park |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2020-01-05 |
|
| 406-936
| 7 |
Clyde Park |
MT |
|
6529 T-MOBILE USA, INC. |
650 |
|
2024-03-15 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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