Local Calling Guide
Area code/prefix search
Billings, MT
<< 1 2 3 4 5 6 7 8 9 10 11 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 406-256
| A |
BLNGMTMADS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-259
| A |
BLNGMTMADS1 |
9636 QWEST CORPORATION |
650 |
|
|
|
| 406-272
| A |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
|
|
| 406-272
| 0 |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2010-06-17 |
|
| 406-272
| 1 |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
|
|
| 406-272
| 2 |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2011-06-19 |
|
| 406-272
| 3 |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2011-06-19 |
|
| 406-272
| 4 |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2011-09-18 |
|
| 406-272
| 5 |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2010-10-21 |
|
| 406-272
| 6 |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2012-09-09 |
|
| 406-272
| 7 |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2012-09-09 |
|
| 406-272
| 8 |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2011-09-16 |
|
| 406-272
| 9 |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2012-09-09 |
|
| 406-281
| A |
BLNGMTWEBMD |
771G TELEPORT COMMUNICATIONS AMERICA MT - LLC |
650 |
|
|
|
| 406-281
| 0 |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2005-03-03 |
|
| 406-281
| 1 |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2005-06-20 |
|
| 406-281
| 2 |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2005-09-26 |
|
| 406-281
| 3 |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2006-03-20 |
|
| 406-281
| 4 |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2006-06-25 |
|
| 406-281
| 5 |
BLNGMT93HMD |
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2009-03-27 |
|
| 406-281
| 6 |
BLNGMT93HMD |
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2009-03-27 |
|
| 406-281
| 7 |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2008-03-22 |
|
| 406-281
| 8 |
BLNGMT93HMD |
792K CHARTER IP ENABLED SERVICES, LLC |
650 |
|
2009-03-27 |
|
| 406-281
| 9 |
BLNGMTWEBMD |
771G TELEPORT COMMUNICATIONS AMERICA MT - LLC |
650 |
|
|
|
| 406-294
| A |
BLNGMT20PS0 |
4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
650 |
|
|
|
| 406-318
| A |
|
453F ONVOY, LLC - MT |
650 |
|
2025-03-23 |
|
| 406-318
| 0 |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-09-09 |
|
| 406-318
| 1 |
BLNGMT939MD |
145J TERRA NOVA TELECOM INC. |
650 |
|
2024-12-05 |
|
| 406-318
| 2 |
BLNGMTWE9MD |
073H TELNYX LLC |
650 |
|
2023-01-09 |
|
| 406-318
| 3 |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2023-06-24 |
|
| 406-318
| 4 |
BLNGMTMAXMD |
6529 T-MOBILE USA, INC. |
650 |
|
2024-10-11 |
|
| 406-318
| 5 |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-01-04 |
|
| 406-318
| 6 |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-01-04 |
|
| 406-318
| 7 |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-01-04 |
|
| 406-318
| 8 |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2015-12-10 |
|
| 406-318
| 9 |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2015-06-29 |
|
| 406-325
| A |
BLNGMTMAX6X |
732J NUSO, LLC |
650 |
|
|
|
| 406-325
| 0 |
BLNGMT934MD |
939H COMMIO, LLC |
650 |
|
2024-03-03 |
|
| 406-325
| 1 |
BLNGMTMAX6X |
732J NUSO, LLC |
650 |
|
2022-09-29 |
|
| 406-325
| 2 |
BLNGMT934MD |
939H COMMIO, LLC |
650 |
|
2024-03-03 |
|
| 406-325
| 3 |
BLNGMT934MD |
939H COMMIO, LLC |
650 |
|
2024-03-03 |
|
| 406-325
| 4 |
BLNGMT20PS0 |
4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
650 |
|
|
|
| 406-325
| 5 |
|
6529 T-MOBILE USA, INC. |
650 |
|
2025-08-07 |
|
| 406-325
| 6 |
BLNGMTAS9MD |
453F ONVOY, LLC - MT |
650 |
|
2015-12-10 |
|
| 406-325
| 7 |
BLNGMTMALMD |
994E BANDWIDTH.COM CLEC, LLC - MT |
650 |
|
2016-07-16 |
|
| 406-325
| 8 |
BLNGMT20PS0 |
4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
650 |
|
|
|
| 406-325
| 9 |
BLNGMT934MD |
939H COMMIO, LLC |
650 |
|
2024-03-03 |
|
| 406-371
| A |
BLNGMTWEAMD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
650 |
|
|
|
| 406-371
| 0 |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2022-05-05 |
|
| 406-371
| 1 |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
2006-06-25 |
|
<< 1 2 3 4 5 6 7 8 9 10 11 >>
Last updated: Thu, 05 Feb 2026 23:41:55 UTC
Sponsored by: FiberConX Communications Ltd.
Like this site? We accept donations via PayPal.