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 |
| 406-944
| 6 |
Miles City |
MT |
|
771G TELEPORT COMMUNICATIONS AMERICA MT - LLC |
650 |
|
2019-04-12 |
|
| 406-944
| 7 |
Miles City |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2019-09-15 |
|
| 406-944
| 8 |
Miles City |
MT |
|
588H AIRUS, INC. - MT |
650 |
|
2019-11-01 |
|
| 406-944
| 9 |
Miles City |
MT |
|
588H AIRUS, INC. - MT |
650 |
|
2020-03-01 |
|
| 406-945
| A |
Havre |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-945
| 0 |
Havre |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-945
| 1 |
Havre |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-945
| 2 |
Havre |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-945
| 3 |
Havre |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-945
| 4 |
Havre |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-945
| 5 |
Havre |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-945
| 7 |
Havre |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2006-06-08 |
|
| 406-945
| 8 |
Havre |
MT |
|
145J TERRA NOVA TELECOM INC. |
648 |
|
2025-10-11 |
|
| 406-945
| 9 |
Havre |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
2008-11-21 |
|
| 406-946
| A |
Livingston |
MT |
BLNGMTWE6MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
|
|
| 406-946
| 0 |
Livingston |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
|
|
| 406-946
| 1 |
Livingston |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2018-03-12 |
|
| 406-946
| 2 |
Livingston |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2016-02-21 |
|
| 406-946
| 3 |
Livingston |
MT |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
650 |
|
2016-03-18 |
|
| 406-946
| 4 |
Livingston |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
|
|
| 406-946
| 5 |
Livingston |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2019-09-15 |
|
| 406-946
| 7 |
Livingston |
MT |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2016-08-11 |
|
| 406-946
| 8 |
Livingston |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2019-10-28 |
|
| 406-946
| 9 |
Livingston |
MT |
|
073H TELNYX LLC |
650 |
|
2017-03-31 |
|
| 406-947
| A |
Musselshell |
MT |
RNDPMTXCDS0 |
2246 MID-RIVERS TEL. COOP., INC. |
650 |
|
|
|
| 406-948
| A |
Glendive |
MT |
BLNGMTWE6MD |
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
|
|
| 406-948
| 0 |
Glendive |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
|
|
| 406-948
| 1 |
Glendive |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2011-08-11 |
|
| 406-948
| 2 |
Glendive |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2011-08-11 |
|
| 406-948
| 3 |
Glendive |
MT |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
650 |
|
2010-10-01 |
|
| 406-948
| 4 |
Glendive |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
|
|
| 406-948
| 5 |
Glendive |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2012-12-17 |
|
| 406-948
| 6 |
Glendive |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2013-01-24 |
|
| 406-948
| 7 |
Glendive |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2012-12-17 |
|
| 406-948
| 8 |
Glendive |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-08-10 |
|
| 406-948
| 9 |
Glendive |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2012-12-17 |
|
| 406-949
| A |
Townsend |
MT |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-949
| 0 |
Townsend |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-949
| 1 |
Townsend |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-949
| 2 |
Townsend |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-949
| 3 |
Townsend |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-949
| 4 |
Townsend |
MT |
|
145J TERRA NOVA TELECOM INC. |
648 |
|
2025-10-11 |
|
| 406-951
| A |
Miles City |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-951
| 0 |
Miles City |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-951
| 1 |
Miles City |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-951
| 2 |
Miles City |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-951
| 3 |
Miles City |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-951
| 4 |
Miles City |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-951
| 6 |
Miles City |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2024-02-12 |
|
| 406-951
| 8 |
Miles City |
MT |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-02-14 |
|
<< 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 >>
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
Sponsored by: Execulink Telecom
Like this site? We accept donations via PayPal.