406-402

You are reviewing the Area Code (NPA/NXX) report for 406-402. Did you mean to search the SMS short code 406402?

North American Phone Intelligence

Search a phone number, area code, exchange, or short code

Paste raw digits, a formatted phone number, an area code, an NPA-NXX block, or a short code. US and Canada phone lookups route automatically, and international iMessage checks are available separately.

Phone Lookup Top Complaints Area Codes NPA-NXX iMessage

Raw Number	406402
Basic Format	406-402
NPA (Area Code)	406
NXX	402

Call Routing Data

NPA-NXX-X	OCN	Company	Rate Center	Use Type	Assign Date	State	Region	Block Effective Date
406-402-0XXX	6529	T-MOBILE USA, INC.	GREATFALLS	AS	03/03/2022	MT	WE	04/02/2022
406-402-1XXX	6529	T-MOBILE USA, INC.	GREATFALLS	AS	08/20/2025	MT	WE	08/29/2025
406-402-2XXX	6529	T-MOBILE USA, INC.	GREATFALLS	AS	06/28/2021	MT	WE	07/07/2021
406-402-3XXX	5562	METROPCS, INC.	GREATFALLS	AS	05/31/2018	MT	WE	06/24/2018
406-402-4XXX	6529	T-MOBILE USA, INC.	GREATFALLS	AS	08/31/2022	MT	WE	09/29/2022
406-402-5XXX	6529	T-MOBILE USA, INC.	GREATFALLS	AS	03/16/2021	MT	WE	04/15/2021
406-402-6XXX	6529	T-MOBILE USA, INC.	GREATFALLS	AS	01/07/2020	MT	WE	02/06/2020
406-402-7XXX	6529	T-MOBILE USA, INC.	GREATFALLS	AS	03/13/2019	MT	WE	04/12/2019
406-402-8XXX	6529	T-MOBILE USA, INC.	GREATFALLS	AS	09/10/2018	MT	WE	10/08/2018
406-402-9XXX	6529	T-MOBILE USA, INC.	GREATFALLS	AS	08/07/2017	MT	WE	11/15/2017
406-402-XXXX	6529	T-MOBILE USA, INC.	GREATFALLS	AS	08/04/2017	MT

Business/Government Phones on the 406-402 Prefix

Phone	Name	Address
406-402-7905	Longhorn Truck & Tractor	1231 Ensign Trail Fort Benton 59442 US

Reports

Anonymous User from , TN

February 12, 2026 at 8:40 PM

406-402-5497 reported as a Robocall. Received on February 12, 2026 at 7:33 PM.

Anonymous User from , OR

August 17, 2025 at 7:44 PM

406-402-7910 reported as a Robocall. Received on August 17, 2025 at 4:37 PM.

Anonymous User from Helena, Montana

February 28, 2025 at 3:09 PM

406-402-4029 reported as a Live Voice or Other. Received on February 28, 2025 at 12:00 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , CA

August 16, 2022 at 12:29 AM

406-402-6669 reported as a Robocall. Received on August 15, 2022 at 9:50 AM.

Anonymous User from Rio Rancho, NM

July 11, 2022 at 1:03 AM

406-402-7377 reported as a Text Message. Received on July 11, 2022 at 9:28 PM.
Unwanted call for Unknown Services
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Phoenix, AZ

July 9, 2022 at 4:26 AM

None reported as a Text Message. Received on July 9, 2022 at 8:15 PM.
Unwanted call for unknown
Caller ID indicated they called from 406-402-7377
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Prospect, Kentucky

July 8, 2022 at 11:43 PM

406-402-7377 reported as a Robocall. Received on July 8, 2022 at 11:25 PM.
Call for No Subject Provided

Most 'popular' numbers on this prefix:

406-402-0XXX: 406-402-0502 | 406-402-0506 | 406-402-0511 | 406-402-0512 | 406-402-0515 | 406-402-0587 |
406-402-6XXX: 406-402-6500 | 406-402-6515 | 406-402-6550 | 406-402-6570 | 406-402-6575 | 406-402-6578 | 406-402-6600 | 406-402-6652 | 406-402-6656 | 406-402-6662 | 406-402-6666 | 406-402-6669 |
406-402-7XXX: 406-402-7337 | 406-402-7370 | 406-402-7372 | 406-402-7373 | 406-402-7375 |