Local Calling Guide
Area code/prefix search
Hardin, MT
<< 1 2
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 406-679
| 7 |
|
732J NUSO, LLC |
650 |
|
2023-07-13 |
|
| 406-699
| A |
BLNGMTMAMMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-699
| 0 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
650 |
|
|
|
| 406-699
| 1 |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2022-05-05 |
|
| 406-699
| 7 |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-02-14 |
|
| 406-699
| 8 |
|
145J TERRA NOVA TELECOM INC. |
650 |
|
2025-10-31 |
|
| 406-699
| 9 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2024-08-23 |
|
| 406-953
| A |
|
443B SAGEBRUSH CELLULAR, INC. |
650 |
|
|
|
| 406-953
| 0 |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
|
|
| 406-953
| 1 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
650 |
|
2025-11-24 |
|
| 406-953
| 2 |
|
453F ONVOY, LLC - MT |
650 |
|
2021-03-07 |
|
| 406-953
| 3 |
|
453F ONVOY, LLC - MT |
650 |
|
2021-03-07 |
|
| 406-953
| 4 |
|
9415 LEVEL 3 COMMUNICATIONS, LLC - MT |
650 |
|
|
|
| 406-953
| 5 |
|
453F ONVOY, LLC - MT |
650 |
|
2020-01-05 |
|
| 406-953
| 6 |
|
453F ONVOY, LLC - MT |
650 |
|
2020-01-05 |
|
| 406-953
| 8 |
|
443B SAGEBRUSH CELLULAR, INC. |
650 |
|
2019-01-10 |
|
| 406-953
| 9 |
|
443B SAGEBRUSH CELLULAR, INC. |
650 |
|
2019-01-10 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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