Local Calling Guide
Area code/prefix search
Havre, MT
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 406-879
| 7 |
|
453F ONVOY, LLC - MT |
648 |
|
2012-12-13 |
|
| 406-879
| 9 |
|
6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT |
648 |
|
2013-03-29 |
|
| 406-945
| A |
MSSLMTAG5MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-945
| 0 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-945
| 1 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-945
| 2 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-945
| 3 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
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| 406-945
| 4 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
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| 406-945
| 5 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
|
|
| 406-945
| 7 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
648 |
|
2006-06-08 |
|
| 406-945
| 8 |
|
145J TERRA NOVA TELECOM INC. |
648 |
|
2025-10-11 |
|
| 406-945
| 9 |
|
792K CHARTER IP ENABLED SERVICES, LLC |
648 |
|
2008-11-21 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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