Local Calling Guide
Area code/prefix search
Columbus, MT
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 406-290
| A |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
|
|
| 406-290
| 0 |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2007-12-17 |
|
| 406-290
| 1 |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2008-01-28 |
|
| 406-290
| 2 |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2008-02-04 |
|
| 406-290
| 3 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-05-31 |
|
| 406-290
| 4 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2010-11-05 |
|
| 406-290
| 5 |
|
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2011-03-27 |
|
| 406-290
| 6 |
|
073H TELNYX LLC |
650 |
|
2020-09-27 |
|
| 406-290
| 7 |
|
453F ONVOY, LLC - MT |
650 |
|
2007-05-06 |
|
| 406-290
| 8 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2018-06-07 |
|
| 406-290
| 9 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2008-11-26 |
|
| 406-298
| A |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-298
| 0 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-298
| 1 |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2008-02-29 |
|
| 406-298
| 2 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2020-08-09 |
|
| 406-298
| 3 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2012-06-01 |
|
| 406-298
| 4 |
|
453F ONVOY, LLC - MT |
650 |
|
2012-12-17 |
|
| 406-298
| 5 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2012-12-07 |
|
| 406-298
| 6 |
|
073H TELNYX LLC |
650 |
|
2017-03-31 |
|
| 406-298
| 7 |
|
453F ONVOY, LLC - MT |
650 |
|
2021-07-05 |
|
| 406-298
| 8 |
|
073H TELNYX LLC |
650 |
|
2019-11-20 |
|
| 406-298
| 9 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2024-12-13 |
|
| 406-321
| A |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-321
| 0 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-321
| 1 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-321
| 2 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-321
| 3 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-321
| 4 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-321
| 5 |
|
453F ONVOY, LLC - MT |
650 |
|
2021-02-11 |
|
| 406-321
| 6 |
|
453F ONVOY, LLC - MT |
650 |
|
2021-02-11 |
|
| 406-321
| 7 |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2021-09-28 |
|
| 406-321
| 8 |
|
588H AIRUS, INC. - MT |
650 |
|
2020-07-20 |
|
| 406-321
| 9 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-322
| A |
CLMBMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-322
| 0 |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-322
| 1 |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-322
| 2 |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2004-11-13 |
|
| 406-322
| 3 |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2006-01-06 |
|
| 406-322
| 4 |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-322
| 5 |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-322
| 6 |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-322
| 7 |
|
939H COMMIO, LLC |
650 |
|
2024-03-04 |
|
| 406-322
| 8 |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-322
| 9 |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-703
| A |
BLNGMTWE0MD |
073H TELNYX LLC |
650 |
|
|
|
| 406-703
| 0 |
|
073H TELNYX LLC |
650 |
|
2021-07-16 |
|
| 406-703
| 1 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2021-09-06 |
|
| 406-703
| 2 |
|
624H ONVOY SPECTRUM, LLC |
650 |
|
2024-03-22 |
|
| 406-703
| 3 |
|
453F ONVOY, LLC - MT |
650 |
|
2021-08-28 |
|
| 406-703
| 6 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2025-09-29 |
|
| 406-703
| 7 |
|
588H AIRUS, INC. - MT |
650 |
|
2025-05-15 |
|
| 406-703
| 8 |
|
939H COMMIO, LLC |
650 |
|
2021-11-14 |
|
| 406-703
| 9 |
|
939H COMMIO, LLC |
650 |
|
2021-11-14 |
|
| 406-780
| A |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-780
| 0 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-780
| 1 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-780
| 2 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2017-10-21 |
|
| 406-780
| 3 |
|
453F ONVOY, LLC - MT |
650 |
|
2019-09-15 |
|
| 406-780
| 4 |
|
453F ONVOY, LLC - MT |
650 |
|
2019-09-15 |
|
| 406-780
| 5 |
|
453F ONVOY, LLC - MT |
650 |
|
2020-01-05 |
|
| 406-780
| 6 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
650 |
|
2016-08-10 |
|
| 406-780
| 7 |
|
453F ONVOY, LLC - MT |
650 |
|
2011-10-21 |
|
| 406-780
| 8 |
|
453F ONVOY, LLC - MT |
650 |
|
2019-10-28 |
|
| 406-780
| 9 |
|
453F ONVOY, LLC - MT |
650 |
|
2020-01-05 |
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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