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 |
| 406-853
| 9 |
Miles City |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-10-04 |
|
| 406-854
| A |
Marion |
MT |
MARNMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-854
| 0 |
Marion |
MT |
|
073H TELNYX LLC |
648 |
|
2020-08-13 |
|
| 406-854
| 1 |
Marion |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-854
| 2 |
Marion |
MT |
|
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-854
| 3 |
Marion |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
648 |
|
2023-02-27 |
|
| 406-854
| 4 |
Marion |
MT |
|
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-854
| 5 |
Marion |
MT |
|
6529 T-MOBILE USA, INC. |
648 |
|
2023-12-16 |
|
| 406-854
| 6 |
Marion |
MT |
|
6529 T-MOBILE USA, INC. |
648 |
|
2025-07-11 |
|
| 406-855
| A |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-856
| A |
Custer |
MT |
RNDPMTXCDS0 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-857
| A |
Somers |
MT |
SMRSMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-857
| 0 |
Somers |
MT |
|
073H TELNYX LLC |
648 |
|
2020-08-13 |
|
| 406-857
| 1 |
Somers |
MT |
|
986F WESTERN MONTANA COMMUNITYTEL INC. - MT |
648 |
|
2020-07-05 |
|
| 406-857
| 2 |
Somers |
MT |
|
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-857
| 3 |
Somers |
MT |
|
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-857
| 4 |
Somers |
MT |
|
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-857
| 5 |
Somers |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2019-09-15 |
|
| 406-857
| 6 |
Somers |
MT |
|
145J TERRA NOVA TELECOM INC. |
648 |
|
2025-10-11 |
|
| 406-857
| 7 |
Somers |
MT |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
648 |
|
2014-05-24 |
|
| 406-857
| 8 |
Somers |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2019-09-15 |
|
| 406-858
| A |
Kalispell |
MT |
GRFLMTMA69Z |
490J DISH WIRELESS, LLC |
648 |
|
|
|
| 406-858
| 0 |
Kalispell |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2014-02-07 |
|
| 406-858
| 1 |
Kalispell |
MT |
|
986F WESTERN MONTANA COMMUNITYTEL INC. - MT |
648 |
|
2016-04-22 |
|
| 406-858
| 2 |
Kalispell |
MT |
|
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-858
| 3 |
Kalispell |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2019-11-18 |
|
| 406-858
| 4 |
Kalispell |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2019-11-18 |
|
| 406-858
| 5 |
Kalispell |
MT |
|
490J DISH WIRELESS, LLC |
648 |
|
2023-08-13 |
|
| 406-858
| 6 |
Kalispell |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2019-09-15 |
|
| 406-858
| 7 |
Kalispell |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2019-11-18 |
|
| 406-858
| 8 |
Kalispell |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2019-11-18 |
|
| 406-858
| 9 |
Kalispell |
MT |
|
073H TELNYX LLC |
648 |
|
2022-11-27 |
|
| 406-859
| A |
Philipsburg |
MT |
PHBGMTXCRS1 |
2235 BLACKFOOT TEL. COOP., INC. |
648 |
|
|
|
| 406-860
| A |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| A |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 0 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 1 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 2 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 3 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 4 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 5 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 6 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 7 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 8 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 9 |
Billings |
MT |
|
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 |
|
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-863
| 1 |
Whitefish |
MT |
|
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-863
| 2 |
Whitefish |
MT |
|
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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