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831-307

You are reviewing the Area Code (NPA/NXX) report for 831-307. Did you mean to search the SMS short code 831307?

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Raw Number831307
Basic Format831-307
NPA (Area Code)831
NXX307

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateStateRegionBlock Effective DateBlock Available Date
831-307-0XXX8826LEVEL 3 COMMUNICATIONS, LLC - CACASTROVLRTCAWC
831-307-1XXX6010NEW CINGULAR WIRELESS PCS, LLCCASTROVLAS12/20/2024CAWC01/19/2025
831-307-2XXX8826LEVEL 3 COMMUNICATIONS, LLC - CACASTROVLRTCAWC
831-307-3XXX8826LEVEL 3 COMMUNICATIONS, LLC - CACASTROVLAVCAWC06/03/2017
831-307-4XXX8826LEVEL 3 COMMUNICATIONS, LLC - CACASTROVLAVCAWC06/03/2017
831-307-5XXX8826LEVEL 3 COMMUNICATIONS, LLC - CACASTROVLAVCAWC06/03/2017
831-307-6XXX8826LEVEL 3 COMMUNICATIONS, LLC - CACASTROVLAVCAWC06/03/2017
831-307-7XXX8826LEVEL 3 COMMUNICATIONS, LLC - CACASTROVLAVCAWC06/03/2017
831-307-8XXX8826LEVEL 3 COMMUNICATIONS, LLC - CACASTROVLAVCAWC06/03/2017
831-307-9XXX8826LEVEL 3 COMMUNICATIONS, LLC - CACASTROVLAVCAWC06/03/2017
831-307-XXXX8826LEVEL 3 COMMUNICATIONS, LLC - CACASTROVLASCA

Reports

Anonymous User from Salinas, California

February 20, 2026 at 4:38 PM

831-307-2569 reported as a Robocall. Received on February 19, 2026 at 6:01 AM.

Anonymous User from , CA

January 13, 2026 at 10:37 AM

831-307-2763 reported as a Live Voice or Other. Received on January 13, 2026 at 8:25 AM.

Anonymous User from Thousand Oaks, California

January 9, 2026 at 3:17 PM

831-307-2288 reported as a Live Voice or Other. Received on January 9, 2026 at 9:00 AM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Visalia, California

January 9, 2026 at 1:05 PM

831-307-2210 reported as a Robocall. Received on January 9, 2026 at 9:56 AM.

Anonymous User from Thousand Oaks, California

January 6, 2026 at 9:20 PM

831-307-2288 reported as a Robocall. Received on January 6, 2026 at 6:00 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from San Jacinto, California

December 2, 2025 at 2:10 PM

831-307-2606 reported as a unwanted call. Received on November 6, 2025 at 12:00 AM.
Call for No Subject Provided

Anonymous User from , CA

November 22, 2025 at 5:04 PM

831-307-2224 reported as a Robocall. Received on November 22, 2025 at 2:01 PM.

Anonymous User from Littleton, Colorado

September 5, 2025 at 2:14 PM

831-307-2450 reported as a Live Voice or Other. Received on September 5, 2025 at 10:11 AM.

Anonymous User from , CA

July 31, 2025 at 6:25 PM

831-307-2567 reported as a Robocall. Received on July 31, 2025 at 3:20 PM.

Anonymous User from , MN

July 31, 2025 at 3:33 PM

831-307-2489 reported as a Robocall. Received on July 31, 2025 at 2:21 PM.

Anonymous User from Fontana, California

July 30, 2025 at 2:07 PM

831-307-2756 reported as a Robocall. Received on July 30, 2025 at 11:00 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , TX

July 22, 2025 at 5:36 PM

831-307-2570 reported as a Robocall. Received on July 22, 2025 at 4:30 PM.
Call for Dropped call or no message

Anonymous User from Montrose, Colorado

May 30, 2025 at 2:09 PM

831-307-0239 reported as a Live Voice or Other. Received on May 30, 2025 at 9:26 AM.

Anonymous User from Fairmont, Georgia

October 11, 2023 at 9:10 PM

831-307-0418 reported as a Robocall. Received on October 9, 2023 at 2:21 PM.
Call for Warranties & protection plans

Anonymous User from Cary, New York

August 31, 2023 at 3:14 PM

831-307-0768 reported as a Robocall. Received on August 31, 2023 at 1:00 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Provo, Utah

May 17, 2023 at 7:35 PM

831-307-0673 reported as a Robocall. Received on May 17, 2023 at 5:29 PM.

Anonymous User from Aptos, California

April 3, 2023 at 4:49 PM

831-307-8628 reported as a Robocall. Received on April 3, 2023 at 1:46 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , CA

March 22, 2023 at 8:56 PM

831-307-0249 reported as a unwanted call. Received on March 22, 2023 at 5:00 PM.
Call for No Subject Provided

Anonymous User from , CA

February 23, 2023 at 2:38 PM

831-307-4823 reported as a Robocall. Received on February 23, 2023 at 11:35 AM.
Call for Lotteries, prizes & sweepstakes

Anonymous User from , CA

March 24, 2017 at 5:41 PM

None reported as a Prerecorded Voice. Received on March 23, 2017 at 12:00 AM.
Unwanted call for unknown
Caller ID indicated they called from 831-307-0249
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , CA

March 3, 2017 at 6:06 AM

None reported as a Prerecorded Voice. Received on February 28, 2017 at 12:00 AM.
Unwanted call for unknown
Caller ID indicated they called from 831-307-0238
Contacted via Wired

Most 'popular' numbers on this prefix:

831-307-0XXX: 831-307-0230 | 831-307-0237 | 831-307-0238 | 831-307-0247 | 831-307-0248 | 831-307-0402 | 831-307-0403 | 831-307-0407 | 831-307-0410 | 831-307-0411 | 831-307-0415 |
831-307-4XXX: 831-307-4800 | 831-307-4820 | 831-307-4822 | 831-307-4823 | 831-307-4887 | 831-307-4889 |
831-307-8XXX: 831-307-8606 | 831-307-8620 | 831-307-8622 | 831-307-8628 | 831-307-8696 | 831-307-8697 |