406-943

You are reviewing the Area Code (NPA/NXX) report for 406-943. Did you mean to search the SMS short code 406943?

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Phone Lookup Top Complaints Area Codes NPA-NXX iMessage

Raw Number	406943
Basic Format	406-943
NPA (Area Code)	406
NXX	943

Call Routing Data

NPA-NXX-X	OCN	Company	Rate Center	Use Type	Assign Date	State	Region	Block Effective Date
406-943-0XXX	9415	LEVEL 3 COMMUNICATIONS, LLC - MT	SIDNEY	RT		MT	WE
406-943-1XXX	453F	ONVOY, LLC - MT	SIDNEY	AS	02/09/2021	MT	WE	03/07/2021
406-943-2XXX	453F	ONVOY, LLC - MT	SIDNEY	AS	02/09/2021	MT	WE	03/07/2021
406-943-3XXX	7229	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	SIDNEY	AS	10/27/2016	MT	WE	11/28/2016
406-943-4XXX	9415	LEVEL 3 COMMUNICATIONS, LLC - MT	SIDNEY	RT		MT	WE
406-943-5XXX	771G	TELEPORT COMMUNICATIONS AMERICA MT - LLC	SIDNEY	AS	02/13/2015	MT	WE	02/25/2015
406-943-6XXX	453F	ONVOY, LLC - MT	SIDNEY	AS	10/12/2020	MT	WE	11/10/2020
406-943-7XXX	508J	CENTURYLINK COMMUNICATIONS, LLC	SIDNEY	AS	07/08/2016	MT	WE	08/12/2016
406-943-8XXX	453F	ONVOY, LLC - MT	SIDNEY	AS	06/07/2021	MT	WE	07/05/2021
406-943-9XXX	453F	ONVOY, LLC - MT	SIDNEY	AS	06/07/2021	MT	WE	07/05/2021
406-943-XXXX	9415	LEVEL 3 COMMUNICATIONS, LLC - MT	SIDNEY	AS	01/09/2003	MT

Business/Government Phones on the 406-943 Prefix

Phone	Name	Address
406-943-0121	Barclay Construction, LLC

Reports

Anonymous User from Lehi City, Montana

January 28, 2026 at 7:27 PM

406-943-2431 reported as a Robocall. Received on January 26, 2026 at 9:37 AM.

Anonymous User from Great Falls, Montana

August 11, 2025 at 5:37 PM

406-943-2255 reported as a Live Voice or Other. Received on August 2, 2025 at 9:28 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Billings, Montana

July 30, 2025 at 1:16 PM

406-943-2235 reported as a Robocall. Received on July 30, 2025 at 11:13 AM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Sun City West, Montana

April 15, 2025 at 1:48 PM

406-943-9798 reported as a Robocall. Received on April 15, 2025 at 7:01 AM.
Call for Medical & prescriptions

Anonymous User from , VA

August 13, 2024 at 2:28 PM

406-943-6708 reported as a Robocall. Received on August 13, 2024 at 1:22 PM.

Anonymous User from Billings, Montana

July 30, 2024 at 9:10 PM

406-943-8603 reported as a Live Voice or Other. Received on July 30, 2024 at 6:47 PM.

Anonymous User from Billings, Montana

July 30, 2024 at 12:40 AM

406-943-8889 reported as a Live Voice or Other. Received on July 29, 2024 at 6:57 PM.

Anonymous User from Marysville, Washington

May 17, 2024 at 5:43 PM

406-943-2566 reported as a Robocall. Received on May 17, 2024 at 2:40 PM.
Call for Dropped call or no message

Anonymous User from Salem, Oregon

March 26, 2024 at 2:34 PM

406-943-2752 reported as a Live Voice or Other. Received on March 26, 2024 at 10:46 AM.

Anonymous User from Rock Springs, Wyoming

November 17, 2023 at 2:35 PM

406-943-2453 reported as a Robocall. Received on November 17, 2023 at 11:24 AM.
Call for Medical & prescriptions

Anonymous User from Winchendon, MA

November 15, 2023 at 9:58 PM

None reported as a Live Voice. Received on November 15, 2023 at 4:48 PM.
Unwanted call for unknown
Caller ID indicated they called from 406-943-2225
Contacted via Internet (VOIP)

Anonymous User from , CO

November 2, 2023 at 11:27 AM

406-943-2225 reported as a unwanted call. Received on November 2, 2023 at 9:25 AM.
Call for Computer & technical support

Most 'popular' numbers on this prefix:

406-943-2XXX: 406-943-2200 | 406-943-2220 | 406-943-2222 | 406-943-2223 | 406-943-2400 | 406-943-2447 | 406-943-2452 | 406-943-2453 | 406-943-2454 | 406-943-2483 | 406-943-2500 | 406-943-2501 | 406-943-2507 | 406-943-2560 | 406-943-2562 | 406-943-2565 | 406-943-2700 | 406-943-2720 | 406-943-2750 | 406-943-2751 | 406-943-2757 | 406-943-2777 |
406-943-6XXX: 406-943-6700 | 406-943-6701 | 406-943-6706 | 406-943-6777 |
406-943-8XXX: 406-943-8600 | 406-943-8601 | 406-943-8606 | 406-943-8650 | 406-943-8800 | 406-943-8801 | 406-943-8880 | 406-943-8887 | 406-943-8889 |
406-943-9XXX: 406-943-9700 | 406-943-9707 | 406-943-9777 | 406-943-9790 | 406-943-9797 | 406-943-9799 |