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406-343

You are reviewing the Area Code (NPA/NXX) report for 406-343. Did you mean to search the SMS short code 406343?

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Raw Number406343
Basic Format406-343
NPA (Area Code)406
NXX343

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateStateRegionBlock Effective DateBlock Available Date
406-343-0XXX2250PROJECT TEL. CO., INC.WYOLARTMTWE
406-343-1XXX2250PROJECT TEL. CO., INC.WYOLAAVMTWE10/07/2025
406-343-2XXX2250PROJECT TEL. CO., INC.WYOLARTMTWE
406-343-3XXX145JTERRA NOVA TELECOM INC.WYOLAAS08/05/2025MTWE08/29/2025
406-343-4XXX2250PROJECT TEL. CO., INC.WYOLAAVMTWE10/07/2025
406-343-5XXX2250PROJECT TEL. CO., INC.WYOLARTMTWE
406-343-6XXX2250PROJECT TEL. CO., INC.WYOLARTMTWE
406-343-7XXX2250PROJECT TEL. CO., INC.WYOLARTMTWE
406-343-8XXX2250PROJECT TEL. CO., INC.WYOLARTMTWE
406-343-9XXX2250PROJECT TEL. CO., INC.WYOLARTMTWE
406-343-XXXX2250PROJECT TEL. CO., INC.WYOLAASMT

Reports

Anonymous User from Great Falls, Montana

September 23, 2025 at 8:37 PM

406-343-0554 reported as a Live Voice or Other. Received on August 18, 2025 at 2:52 PM.

Anonymous User from Winston, Montana

February 3, 2025 at 12:41 PM

406-343-4071 reported as a Live Voice or Other. Received on February 2, 2025 at 12:00 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Helena, Montana

March 24, 2023 at 11:38 AM

406-343-4032 reported as a Robocall. Received on March 24, 2023 at 9:36 AM.

Most 'popular' numbers on this prefix:

406-343-4XXX: 406-343-4030 | 406-343-4033 | 406-343-4034 | 406-343-4040 | 406-343-4062 |