phone.gd North American phone lookup, short codes, caller signals, and complaint-driven research.

406-503

You are reviewing the Area Code (NPA/NXX) report for 406-503. Did you mean to search the SMS short code 406503?

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.

Examples: 206-739-5800, 206, 206-739, 48369
Raw Number406503
Basic Format406-503
NPA (Area Code)406
NXX503

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateStateRegionBlock Effective Date
406-503-0XXX453FONVOY, LLC - MTBILLINGSAS07/21/2023MTWE08/20/2023
406-503-1XXX318JCOMCAST IP PHONE, LLCBILLINGSAS04/05/2023MTWE06/04/2023
406-503-2XXX6529T-MOBILE USA, INC.BILLINGSAS01/16/2024MTWE01/26/2024
406-503-3XXX453FONVOY, LLC - MTBILLINGSAS01/12/2024MTWE02/09/2024
406-503-4XXX5562METROPCS, INC.BILLINGSAS08/31/2023MTWE09/24/2023
406-503-5XXX453FONVOY, LLC - MTBILLINGSAS01/12/2024MTWE02/09/2024
406-503-6XXX453FONVOY, LLC - MTBILLINGSAS01/12/2024MTWE02/09/2024
406-503-7XXX453FONVOY, LLC - MTBILLINGSAS01/12/2024MTWE02/09/2024
406-503-8XXX453FONVOY, LLC - MTBILLINGSAS07/21/2023MTWE08/20/2023
406-503-9XXX453FONVOY, LLC - MTBILLINGSAS07/21/2023MTWE08/20/2023
406-503-XXXX318JCOMCAST IP PHONE, LLCBILLINGSAS04/05/2023MT

Reports

Anonymous User from Missoula, Montana

January 6, 2026 at 3:02 PM

406-503-5905 reported as a Robocall. Received on January 5, 2026 at 10:14 AM.

Anonymous User from Helena, Montana

September 30, 2025 at 11:58 AM

406-503-3974 reported as a Live Voice or Other. Received on September 30, 2025 at 9:54 AM.
Call for Medical & prescriptions

Anonymous User from , KY

September 17, 2025 at 4:02 PM

4065035 reported as a Robocall. Received on September 17, 2025 at 2:54 PM.
Call for Dropped call or no message

Anonymous User from Huntington Beach, California

July 21, 2025 at 6:57 PM

406-503-0747 reported as a Robocall. Received on July 21, 2025 at 2:25 PM.
Call for Dropped call or no message

Anonymous User from Woodland Hills, California

June 24, 2025 at 5:46 PM

406-503-0758 reported as a Live Voice or Other. Received on June 24, 2025 at 2:45 PM.
Call for Vacation & timeshares

Anonymous User from Lexington, OH

June 12, 2025 at 5:29 PM

reported as a Live Voice. Received on June 12, 2025 at 1:50 PM.
Unwanted call for Other Services
Caller ID indicated they called from 406-503-0745
Contacted via Internet (VOIP)

Anonymous User from Amarillo, Texas

April 22, 2025 at 3:24 PM

406-503-0975 reported as a Live Voice or Other. Received on March 15, 2025 at 1:37 PM.

Anonymous User from Beaumont, TX

March 13, 2025 at 7:51 PM

406-503-3695 reported as a Text Message. Received on March 13, 2025 at 2:45 PM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Parkdale, Oregon

March 12, 2025 at 8:26 PM

406-503-9973 reported as a Live Voice or Other. Received on March 11, 2025 at 2:21 PM.

Anonymous User from Calabasas, California

March 8, 2025 at 11:20 PM

406-503-8973 reported as a Live Voice or Other. Received on March 8, 2025 at 2:18 PM.

Anonymous User from Austin, Texas

February 28, 2025 at 12:37 PM

406-503-8992 reported as a Robocall. Received on February 28, 2025 at 11:26 AM.

Anonymous User from Craig, CO

February 19, 2025 at 6:38 PM

917-695-8861 reported as a Live Voice. Received on February 19, 2025 at 11:30 AM.
Unwanted call for Other Services
Caller ID indicated they called from 406-503-9941
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Downingtown, Pennsylvania

February 19, 2025 at 11:33 AM

406-503-9170 reported as a Robocall. Received on January 30, 2025 at 9:32 AM.

Anonymous User from Kalispell, Montana

February 8, 2025 at 10:18 AM

406-503-9524 reported as a Robocall. Received on February 8, 2025 at 8:06 AM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Fortine, Montana

February 7, 2025 at 2:13 PM

406-503-8520 reported as a Live Voice or Other. Received on February 7, 2025 at 11:02 AM.

Anonymous User from Great Falls, Montana

February 6, 2025 at 11:11 AM

406-503-8973 reported as a Live Voice or Other. Received on February 5, 2025 at 6:34 PM.
Call for Charities

Anonymous User from Old Fort, North Carolina

January 27, 2025 at 2:46 PM

406-503-8972 reported as a Live Voice or Other. Received on January 27, 2025 at 2:29 PM.

Anonymous User from Shawmut, Montana

December 19, 2024 at 12:40 PM

406-503-9174 reported as a Live Voice or Other. Received on December 19, 2024 at 10:30 AM.

Anonymous User from Acton, Montana

December 16, 2024 at 8:24 PM

406-503-8408 reported as a Robocall. Received on December 13, 2024 at 5:07 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Acton, Montana

December 16, 2024 at 8:22 PM

406-503-8405 reported as a Robocall. Received on December 14, 2024 at 10:10 AM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , CA

September 26, 2024 at 7:54 PM

406-503-7074 reported as a unwanted call. Received on September 26, 2024 at 8:03 AM.
Call for No Subject Provided

Anonymous User from , CA

September 23, 2024 at 3:49 PM

406-503-7075 reported as a unwanted call. Received on September 23, 2024 at 12:34 PM.
Call for No Subject Provided

Anonymous User from Twin Bridges, Montana

September 5, 2024 at 5:08 PM

406-503-3973 reported as a Live Voice or Other. Received on September 5, 2024 at 3:01 PM.
Call for Medical & prescriptions

Anonymous User from Mount Vernon, Iowa

July 29, 2024 at 12:56 PM

406-503-3006 reported as a Robocall. Received on July 25, 2024 at 3:01 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Seymour, Tennessee

July 26, 2024 at 4:54 PM

406-503-3006 reported as a Robocall. Received on July 26, 2024 at 4:14 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , MT

July 18, 2024 at 11:22 AM

406-503-7191 reported as a Live Voice or Other. Received on July 16, 2024 at 10:17 AM.
Call for Dropped call or no message

Anonymous User from , MT

July 5, 2024 at 12:34 PM

406-503-8742 reported as a unwanted call. Received on June 27, 2024 at 12:57 PM.

Anonymous User from , NC

June 16, 2024 at 5:16 PM

406-503-0121 reported as a Live Voice or Other. Received on June 3, 2024 at 12:23 PM.

Anonymous User from , NC

June 10, 2024 at 2:58 PM

406-503-0121 reported as a Live Voice or Other. Received on June 3, 2024 at 12:23 PM.

Anonymous User from , MS

May 31, 2024 at 11:03 AM

406-503-9903 reported as a Robocall. Received on May 31, 2024 at 9:44 AM.

Anonymous User from , TX

May 30, 2024 at 12:06 PM

406-503-9998 reported as a unwanted call. Received on May 22, 2024 at 6:11 PM.

Anonymous User from , MI

April 11, 2024 at 5:24 PM

406-503-7413 reported as a Live Voice or Other. Received on April 11, 2024 at 12:00 AM.

Anonymous User from Vacaville, California

April 10, 2024 at 7:23 PM

406-503-7413 reported as a Live Voice or Other. Received on April 10, 2024 at 4:13 PM.

Anonymous User from Vacaville, California

April 10, 2024 at 7:21 PM

406-503-7413 reported as a Live Voice or Other. Received on April 10, 2024 at 12:22 PM.
Call for Dropped call or no message

Anonymous User from Vacavill, California

April 10, 2024 at 7:16 PM

406-503-7413 reported as a Live Voice or Other. Received on April 10, 2024 at 4:13 PM.

Anonymous User from , TX

April 10, 2024 at 2:34 PM

406-503-7413 reported as a Live Voice or Other. Received on April 10, 2024 at 1:33 PM.
Call for Dropped call or no message

Anonymous User from , IN

March 6, 2024 at 11:15 AM

406-503-9886 reported as a Live Voice or Other. Received on March 6, 2024 at 10:17 AM.
Call for Dropped call or no message

Anonymous User from , MT

September 19, 2023 at 5:08 PM

406-503-0194 reported as a Robocall. Received on September 18, 2023 at 4:24 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Most 'popular' numbers on this prefix:

406-503-0XXX: 406-503-0122 | 406-503-0125 | 406-503-0128 | 406-503-0158 | 406-503-0176 | 406-503-0178 | 406-503-0700 | 406-503-0702 | 406-503-0707 | 406-503-0740 | 406-503-0743 | 406-503-0745 | 406-503-0902 | 406-503-0907 | 406-503-0909 |
406-503-3XXX: 406-503-3000 | 406-503-3003 | 406-503-3008 | 406-503-3600 | 406-503-3650 | 406-503-3662 | 406-503-3690 | 406-503-3695 | 406-503-3699 | 406-503-3900 | 406-503-3906 | 406-503-3970 | 406-503-3975 | 406-503-3977 | 406-503-3998 |
406-503-7XXX: 406-503-7000 | 406-503-7040 | 406-503-7070 | 406-503-7077 | 406-503-7078 | 406-503-7152 | 406-503-7172 | 406-503-7179 | 406-503-7195 | 406-503-7196 | 406-503-7199 | 406-503-7410 | 406-503-7411 | 406-503-7414 | 406-503-7449 | 406-503-7452 |
406-503-8XXX: 406-503-8400 | 406-503-8401 | 406-503-8404 | 406-503-8409 | 406-503-8453 | 406-503-8500 | 406-503-8501 | 406-503-8520 | 406-503-8522 | 406-503-8523 | 406-503-8556 | 406-503-8701 | 406-503-8706 | 406-503-8740 | 406-503-8745 | 406-503-8747 | 406-503-8787 | 406-503-8970 | 406-503-8975 | 406-503-8977 | 406-503-8995 | 406-503-8997 | 406-503-8998 |
406-503-9XXX: 406-503-9170 | 406-503-9172 | 406-503-9175 | 406-503-9192 | 406-503-9195 | 406-503-9197 | 406-503-9500 | 406-503-9520 | 406-503-9521 | 406-503-9522 | 406-503-9550 | 406-503-9880 | 406-503-9883 | 406-503-9888 | 406-503-9900 | 406-503-9962 | 406-503-9990 | 406-503-9994 | 406-503-9999 |