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 |
| 406-924
| 1 |
Belgrade |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2009-03-19 |
|
| 406-924
| 2 |
Belgrade |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2006-12-08 |
|
| 406-924
| 3 |
Belgrade |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2010-02-20 |
|
| 406-924
| 4 |
Belgrade |
MT |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2004-12-20 |
|
| 406-924
| 5 |
Belgrade |
MT |
|
9636 QWEST CORPORATION |
650 |
|
2009-03-30 |
|
| 406-924
| 6 |
Belgrade |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2005-06-27 |
|
| 406-924
| 7 |
Belgrade |
MT |
|
453F ONVOY, LLC - MT |
650 |
|
2006-11-06 |
|
| 406-924
| 8 |
Belgrade |
MT |
|
746D MONTANA OPTICOM, LLC - MT |
650 |
|
2010-08-16 |
|
| 406-924
| 9 |
Belgrade |
MT |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2009-02-13 |
|
| 406-925
| A |
Dillon |
MT |
HLNAMTMAX1X |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-925
| 0 |
Dillon |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-925
| 1 |
Dillon |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-925
| 2 |
Dillon |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-925
| 3 |
Dillon |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-925
| 5 |
Dillon |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
2008-11-21 |
|
| 406-925
| 6 |
Dillon |
MT |
|
771G TELEPORT COMMUNICATIONS AMERICA MT - LLC |
648 |
|
2019-05-10 |
|
| 406-925
| 7 |
Dillon |
MT |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
648 |
|
2014-06-02 |
|
| 406-925
| 9 |
Dillon |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
|
|
| 406-926
| A |
Missoula |
MT |
MSSLMTEH4MD |
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
|
|
| 406-926
| 0 |
Missoula |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2020-10-05 |
|
| 406-926
| 1 |
Missoula |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
2011-03-06 |
|
| 406-926
| 2 |
Missoula |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
2011-08-21 |
|
| 406-926
| 3 |
Missoula |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
2011-12-03 |
|
| 406-926
| 4 |
Missoula |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2019-09-15 |
|
| 406-926
| 5 |
Missoula |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2020-10-05 |
|
| 406-926
| 6 |
Missoula |
MT |
|
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
2013-11-11 |
|
| 406-926
| 7 |
Missoula |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2020-10-05 |
|
| 406-926
| 8 |
Missoula |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2020-04-25 |
|
| 406-926
| 9 |
Missoula |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2016-01-22 |
|
| 406-927
| A |
Billings |
MT |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-927
| 0 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2010-09-19 |
|
| 406-927
| 1 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2010-09-19 |
|
| 406-927
| 2 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2010-09-21 |
|
| 406-927
| 3 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2015-09-07 |
|
| 406-927
| 4 |
Billings |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2013-12-09 |
|
| 406-927
| 5 |
Billings |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2014-03-10 |
|
| 406-927
| 6 |
Billings |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2014-03-31 |
|
| 406-927
| 7 |
Billings |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2014-04-15 |
|
| 406-927
| 8 |
Billings |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2014-05-08 |
|
| 406-927
| 9 |
Billings |
MT |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2015-09-07 |
|
| 406-928
| A |
Grass Range |
MT |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-928
| 0 |
Grass Range |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-928
| 8 |
Grass Range |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-928
| 9 |
Grass Range |
MT |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-929
| A |
Hungry Horse |
MT |
GRFLMTMA7MD |
453F ONVOY, LLC - MT |
648 |
|
|
|
| 406-929
| 1 |
Hungry Horse |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2012-12-15 |
|
| 406-929
| 2 |
Hungry Horse |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2012-12-15 |
|
| 406-929
| 3 |
Hungry Horse |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2012-12-15 |
|
| 406-929
| 4 |
Hungry Horse |
MT |
|
453F ONVOY, LLC - MT |
648 |
|
2021-04-21 |
|
| 406-929
| 5 |
Hungry Horse |
MT |
|
6529 T-MOBILE USA, INC. |
648 |
|
2024-06-22 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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