Local Calling Guide
Area code/prefix search
Forsyth, MT
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 406-201
| A |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-201
| 0 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-201
| 1 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2013-12-13 |
|
| 406-201
| 2 |
|
453F ONVOY, LLC - MT |
650 |
|
2019-10-28 |
|
| 406-201
| 3 |
|
453F ONVOY, LLC - MT |
650 |
|
2012-12-17 |
|
| 406-201
| 4 |
|
453F ONVOY, LLC - MT |
650 |
|
2012-12-17 |
|
| 406-201
| 5 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2014-05-25 |
|
| 406-201
| 6 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-05-14 |
|
| 406-201
| 7 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-05-14 |
|
| 406-201
| 8 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2017-02-26 |
|
| 406-201
| 9 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2012-09-09 |
|
| 406-346
| A |
FRSYMTMA0MD |
8140 RANGE TELEPHONE COOPERATIVE, INC. - MT |
650 |
|
|
|
| 406-346
| 0 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2023-07-18 |
|
| 406-346
| 1 |
|
8140 RANGE TELEPHONE COOPERATIVE, INC. - MT |
650 |
|
|
|
| 406-346
| 2 |
|
8140 RANGE TELEPHONE COOPERATIVE, INC. - MT |
650 |
|
|
|
| 406-346
| 3 |
|
8140 RANGE TELEPHONE COOPERATIVE, INC. - MT |
650 |
|
|
|
| 406-346
| 4 |
|
8140 RANGE TELEPHONE COOPERATIVE, INC. - MT |
650 |
|
|
|
| 406-346
| 5 |
|
8140 RANGE TELEPHONE COOPERATIVE, INC. - MT |
650 |
|
|
|
| 406-346
| 6 |
|
8140 RANGE TELEPHONE COOPERATIVE, INC. - MT |
650 |
|
|
|
| 406-346
| 7 |
|
8140 RANGE TELEPHONE COOPERATIVE, INC. - MT |
650 |
|
|
|
| 406-346
| 8 |
|
8140 RANGE TELEPHONE COOPERATIVE, INC. - MT |
650 |
|
|
|
| 406-346
| 9 |
|
8140 RANGE TELEPHONE COOPERATIVE, INC. - MT |
650 |
|
|
|
| 406-351
| A |
BLNGMTWEIMD |
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-351
| 0 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2010-02-20 |
|
| 406-351
| 1 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-351
| 2 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-351
| 3 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-351
| 4 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2017-06-04 |
|
| 406-351
| 5 |
|
624H ONVOY SPECTRUM, LLC |
650 |
|
2025-02-17 |
|
| 406-351
| 6 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2020-06-09 |
|
| 406-351
| 7 |
|
453F ONVOY, LLC - MT |
650 |
|
2011-10-21 |
|
| 406-351
| 8 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
650 |
|
2018-05-14 |
|
| 406-351
| 9 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
|
|
| 406-356
| A |
FRSYMTMARS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-356
| 0 |
|
453F ONVOY, LLC - MT |
650 |
|
2019-09-15 |
|
| 406-356
| 1 |
|
073H TELNYX LLC |
650 |
|
2018-07-25 |
|
| 406-356
| 2 |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-356
| 3 |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-356
| 4 |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-356
| 5 |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
2006-05-21 |
|
| 406-356
| 6 |
|
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2009-02-13 |
|
| 406-356
| 7 |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-356
| 8 |
|
453F ONVOY, LLC - MT |
650 |
|
2007-04-14 |
|
| 406-356
| 9 |
|
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-416
| A |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
|
|
| 406-416
| 0 |
|
453F ONVOY, LLC - MT |
650 |
|
2021-07-05 |
|
| 406-416
| 1 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2021-12-23 |
|
| 406-416
| 2 |
|
453F ONVOY, LLC - MT |
650 |
|
2021-03-07 |
|
| 406-416
| 3 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2023-06-01 |
|
| 406-416
| 4 |
|
453F ONVOY, LLC - MT |
650 |
|
2020-08-08 |
|
| 406-416
| 5 |
|
453F ONVOY, LLC - MT |
650 |
|
2020-08-08 |
|
| 406-416
| 6 |
|
453F ONVOY, LLC - MT |
650 |
|
2020-11-10 |
|
| 406-416
| 7 |
|
453F ONVOY, LLC - MT |
650 |
|
2020-11-10 |
|
| 406-416
| 8 |
|
939H COMMIO, LLC |
650 |
|
2022-06-06 |
|
| 406-416
| 9 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2022-12-13 |
|
Last updated: Tue, 13 Jan 2026 21:50:02 UTC
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