406-731

You are reviewing the Area Code (NPA/NXX) report for 406-731. Did you mean to search the SMS short code 406731?

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Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Raw Number406731
Basic Format406-731
NPA (Area Code)406
NXX731

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective DateBlock Available Date
406-731-0XXX700JWAVENATION, LLCGREATFALLSAS08/07/2025GREAT FALLSMTWE10/05/2025
406-731-1XXX9636QWEST CORPORATIONGREATFALLSRTGREAT FALLSMTWE
406-731-2XXX9636QWEST CORPORATIONGREATFALLSRTGREAT FALLSMTWE
406-731-3XXX9636QWEST CORPORATIONGREATFALLSRTGREAT FALLSMTWE
406-731-4XXX9636QWEST CORPORATIONGREATFALLSRTGREAT FALLSMTWE
406-731-5XXX9636QWEST CORPORATIONGREATFALLSRTGREAT FALLSMTWE
406-731-6XXX9636QWEST CORPORATIONGREATFALLSRTGREAT FALLSMTWE
406-731-7XXX9636QWEST CORPORATIONGREATFALLSRTGREAT FALLSMTWE
406-731-8XXX9636QWEST CORPORATIONGREATFALLSAS06/11/2004GREAT FALLSMTWE07/12/2004
406-731-9XXX700JWAVENATION, LLCGREATFALLSAVGREAT FALLSMTWE10/05/2025
406-731-XXXX700JWAVENATION, LLCGREATFALLSASGREAT FALLSMT

Business/Government Phones on the 406-731 Prefix

PhoneNameAddress
406-731-4633Malmstrom Air Force Base Clinic7300 North Perimeter Road Malmstrom Air Force Base 59403 US

Reports

Anonymous User from , MT

September 30, 2026 at 3:13 PM

406-731-8942 reported as a Robocall. Received on September 29, 2026 at 3:22 PM.
Call for No Subject Provided

Anonymous User from Plains, Montana

August 5, 2026 at 7:02 PM

406-731-5958 reported as a Live Voice or Other. Received on August 5, 2026 at 5:00 PM.
Call for Dropped call or no message

Anonymous User from Billings, Montana

June 24, 2026 at 4:46 PM

406-731-6794 reported as a Robocall. Received on June 24, 2026 at 12:05 PM.

Anonymous User from Great Falls, Montana

April 10, 2026 at 5:23 PM

406-731-8405 reported as a Live Voice or Other. Received on April 9, 2026 at 11:17 AM.

Anonymous User from Reeseville, Wisconsin

March 8, 2026 at 10:28 PM

406-731-2094 reported as a Live Voice or Other. Received on March 7, 2026 at 12:42 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Hinsdale, Montana

June 24, 2025 at 10:24 PM

406-731-6132 reported as a Robocall. Received on June 24, 2025 at 8:13 AM.
Call for Medical & prescriptions

Anonymous User from , MT

April 18, 2025 at 11:41 AM

406-731-6181 reported as a Robocall. Received on April 17, 2025 at 9:13 AM.

Anonymous User from Sun City West, Montana

April 15, 2025 at 1:43 PM

406-731-7840 reported as a Robocall. Received on April 14, 2025 at 2:15 PM.
Call for Medical & prescriptions

Anonymous User from Sun City West, Montana

April 9, 2025 at 6:11 PM

406-731-8317 reported as a Robocall. Received on April 2, 2025 at 12:00 AM.
Call for Medical & prescriptions

Anonymous User from Billings, Montana

December 13, 2024 at 7:03 PM

406-731-3019 reported as a Robocall. Received on December 13, 2024 at 5:01 PM.

Anonymous User from Salem, Montana

May 28, 2024 at 12:54 PM

406-731-8394 reported as a Robocall. Received on May 28, 2024 at 10:51 AM.

Anonymous User from Salem, Montana

May 28, 2024 at 11:31 AM

406-731-8394 reported as a Robocall. Received on May 28, 2024 at 8:26 AM.

Anonymous User from Salem, Montana

May 28, 2024 at 11:29 AM

406-731-8298 reported as a Live Voice or Other. Received on May 28, 2024 at 8:23 AM.

Anonymous User from Kalispell, Montana

January 16, 2024 at 6:13 PM

406-731-5145 reported as a Live Voice or Other. Received on January 16, 2024 at 2:26 PM.
Call for Medical & prescriptions

Anonymous User from Raleigh, North Carolina

August 15, 2022 at 8:22 PM

406-731-9804 reported as a Robocall. Received on August 15, 2022 at 7:31 PM.
Call for Dropped call or no message

Anonymous User from Great Falls, Montana

June 7, 2022 at 6:59 PM

406-731-8394 reported as a Robocall. Received on March 7, 2022 at 11:42 AM.

Most 'popular' numbers on this prefix:

406-731-3XXX: 406-731-3000 | 406-731-3010 | 406-731-3011 | 406-731-3015 | 406-731-3030 | 406-731-3062 |
406-731-4XXX: 406-731-4600 | 406-731-4601 | 406-731-4607 | 406-731-4690 | 406-731-4699 | 406-731-4700 | 406-731-4705 | 406-731-4707 | 406-731-4777 |
406-731-5XXX: 406-731-5100 | 406-731-5120 | 406-731-5140 | 406-731-5141 | 406-731-5144 | 406-731-5150 | 406-731-5700 | 406-731-5701 | 406-731-5707 | 406-731-5777 |
406-731-7XXX: 406-731-7800 | 406-731-7801 | 406-731-7820 | 406-731-7840 | 406-731-7845 | 406-731-7847 |
406-731-8XXX: 406-731-8200 | 406-731-8207 | 406-731-8250 | 406-731-8290 | 406-731-8292 | 406-731-8295 | 406-731-8300 | 406-731-8303 | 406-731-8320 | 406-731-8390 | 406-731-8393 | 406-731-8399 |
406-731-9XXX: 406-731-9800 | 406-731-9801 | 406-731-9807 | 406-731-9808 | 406-731-9809 |