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 |
| 406-290
| 4 |
Columbus |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2010-11-05 |
|
| 406-290
| 5 |
Columbus |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2011-03-27 |
|
| 406-290
| 6 |
Columbus |
MT |
|
073H TELNYX LLC |
650 |
|
2020-09-27 |
|
| 406-290
| 7 |
Columbus |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2007-05-06 |
|
| 406-290
| 8 |
Columbus |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2018-06-07 |
|
| 406-290
| 9 |
Columbus |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2008-11-26 |
|
| 406-291
| A |
Libby |
MT |
CRALIDXXGMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
|
|
| 406-291
| 0 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
|
|
| 406-291
| 1 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
|
|
| 406-291
| 2 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
|
|
| 406-291
| 3 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
|
|
| 406-291
| 4 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
|
|
| 406-291
| 5 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
|
|
| 406-291
| 6 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
|
|
| 406-291
| 7 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
|
|
| 406-291
| 8 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
2010-05-03 |
|
| 406-291
| 9 |
Libby |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
960 |
|
|
|
| 406-292
| A |
Joplin |
MT |
HAVRMTXCDS0 |
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-292
| 1 |
Joplin |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-292
| 2 |
Joplin |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
648 |
|
2019-01-18 |
|
| 406-292
| 3 |
Joplin |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-292
| 4 |
Joplin |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-292
| 7 |
Joplin |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-292
| 9 |
Joplin |
MT |
|
2257 TRIANGLE TEL. COOP. ASSN., INC. |
648 |
|
|
|
| 406-293
| A |
Libby |
MT |
LBBYMTXCDS0 |
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-293
| 0 |
Libby |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-293
| 1 |
Libby |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
960 |
|
|
|
| 406-293
| 2 |
Libby |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-293
| 3 |
Libby |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-293
| 4 |
Libby |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-293
| 5 |
Libby |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-293
| 6 |
Libby |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-293
| 7 |
Libby |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-293
| 8 |
Libby |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-293
| 9 |
Libby |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-294
| A |
Billings |
MT |
BLNGMT20PS0 |
4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
650 |
|
|
|
| 406-295
| A |
Troy |
MT |
TROYMTXCDS1 |
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-295
| 0 |
Troy |
MT |
|
453F ONVOY, LLC - MT |
960 |
|
2021-02-11 |
|
| 406-295
| 1 |
Troy |
MT |
|
453F ONVOY, LLC - MT |
960 |
|
2020-09-06 |
|
| 406-295
| 2 |
Troy |
MT |
|
453F ONVOY, LLC - MT |
960 |
|
2019-10-12 |
|
| 406-295
| 3 |
Troy |
MT |
|
453F ONVOY, LLC - MT |
960 |
|
2020-06-05 |
|
| 406-295
| 4 |
Troy |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-295
| 5 |
Troy |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-295
| 6 |
Troy |
MT |
|
453F ONVOY, LLC - MT |
960 |
|
2020-02-23 |
|
| 406-295
| 7 |
Troy |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-295
| 8 |
Troy |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
960 |
|
2017-04-01 |
|
| 406-295
| 9 |
Troy |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-296
| A |
Eureka |
MT |
EURKMTXCRS0 |
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-296
| 0 |
Eureka |
MT |
|
4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER |
960 |
|
|
|
| 406-296
| 1 |
Eureka |
MT |
|
453F ONVOY, LLC - MT |
960 |
|
2021-08-28 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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