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 |
| 406-853
| 3 |
Miles City |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-853
| 4 |
Miles City |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-853
| 5 |
Miles City |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-853
| 6 |
Miles City |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-853
| 7 |
Miles City |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2023-06-24 |
|
| 406-853
| 8 |
Miles City |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2012-04-06 |
|
| 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 |
GRFLMTMAHMD |
073H TELNYX LLC |
648 |
|
2020-08-13 |
|
| 406-854
| 1 |
Marion |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2021-07-05 |
|
| 406-854
| 2 |
Marion |
MT |
MARNMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-854
| 3 |
Marion |
MT |
MSSLMTMA0MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
648 |
|
2023-02-27 |
|
| 406-854
| 4 |
Marion |
MT |
MARNMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-854
| 5 |
Marion |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2023-12-16 |
|
| 406-854
| 6 |
Marion |
MT |
MSSLMTMACMD |
6529 T-MOBILE USA, INC. |
648 |
|
2025-07-11 |
|
| 406-854
| 9 |
Marion |
MT |
BLNGMT939MD |
145J TERRA NOVA TELECOM INC. |
648 |
|
2026-07-05 |
|
| 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 |
GRFLMTMAHMD |
073H TELNYX LLC |
648 |
|
2020-08-13 |
|
| 406-857
| 1 |
Somers |
MT |
CHRLMT010MD |
986F WESTERN MONTANA COMMUNITYTEL INC. - MT |
648 |
|
2020-07-05 |
|
| 406-857
| 2 |
Somers |
MT |
SMRSMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-857
| 3 |
Somers |
MT |
SMRSMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-857
| 4 |
Somers |
MT |
SMRSMTXCRS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-857
| 5 |
Somers |
MT |
GRFLMTMA7MD |
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 |
HLNAMTMAUMD |
508J CENTURYLINK COMMUNICATIONS, LLC |
648 |
|
2014-05-24 |
|
| 406-857
| 8 |
Somers |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-09-15 |
|
| 406-858
| A |
Kalispell |
MT |
GRFLMTMA69Z |
490J BOOST SUBSCRIBERCO L.L.C. |
648 |
|
|
|
| 406-858
| 0 |
Kalispell |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2014-02-07 |
|
| 406-858
| 1 |
Kalispell |
MT |
CHRLMT010MD |
986F WESTERN MONTANA COMMUNITYTEL INC. - MT |
648 |
|
2016-04-22 |
|
| 406-858
| 2 |
Kalispell |
MT |
KLSLMTXCDS0 |
2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK |
648 |
|
|
|
| 406-858
| 3 |
Kalispell |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-11-18 |
|
| 406-858
| 4 |
Kalispell |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-11-18 |
|
| 406-858
| 5 |
Kalispell |
MT |
GRFLMTMA69Z |
490J BOOST SUBSCRIBERCO L.L.C. |
648 |
|
2023-08-13 |
|
| 406-858
| 6 |
Kalispell |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-09-15 |
|
| 406-858
| 7 |
Kalispell |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-11-18 |
|
| 406-858
| 8 |
Kalispell |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
2019-11-18 |
|
| 406-858
| 9 |
Kalispell |
MT |
GRFLMTMAHMD |
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 |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 1 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 2 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 3 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 4 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 5 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 6 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-861
| 7 |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
<< 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
Sponsored by: VoIP Much Phone Company
Like this site? We accept donations via PayPal.