312-871

You are reviewing the Area Code (NPA/NXX) report for 312-871. Did you mean to search the SMS short code 312871?

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🇺🇸 DSN NORTHCOM Area Code Detected

The area code you entered, 312, overlaps with the DSN network for the Continental United States and Puerto Rico under Northern Command (NORTHCOM), though it could also be part of standard civilian phone numbers.

Raw Number	312871
Basic Format	312-871
NPA (Area Code)	312
NXX	871

Call Routing Data

NPA-NXX-X	OCN	Company	Rate Center	Use Type	Assign Date	City	State	Region	Block Effective Date
312-871-0XXX	6529	T-MOBILE USA, INC.	CHICGOZN01	AS	09/15/2015	CHICAGO ZONE 01	IL	MW	10/13/2015
312-871-1XXX	6529	T-MOBILE USA, INC.	CHICGOZN01	AS	09/15/2015	CHICAGO ZONE 01	IL	MW	10/13/2015
312-871-2XXX	6529	T-MOBILE USA, INC.	CHICGOZN01	AS	09/15/2015	CHICAGO ZONE 01	IL	MW	10/13/2015
312-871-3XXX	6115	LEVEL 3 COMMUNICATIONS, LLC - IL	CHICGOZN01	AS	06/01/2016	CHICAGO ZONE 01	IL	MW	06/25/2016
312-871-4XXX	7136	TELEPORT COMMUNICATIONS AMERICA, LLC - IL	CHICGOZN01	AS	09/11/2015	CHICAGO ZONE 01	IL	MW	10/13/2015
312-871-5XXX	7136	TELEPORT COMMUNICATIONS AMERICA, LLC - IL	CHICGOZN01	AS	09/11/2015	CHICAGO ZONE 01	IL	MW	10/13/2015
312-871-6XXX	7136	TELEPORT COMMUNICATIONS AMERICA, LLC - IL	CHICGOZN01	AS	09/11/2015	CHICAGO ZONE 01	IL	MW	10/13/2015
312-871-7XXX	6529	T-MOBILE USA, INC.	CHICGOZN01	AS	09/15/2015	CHICAGO ZONE 01	IL	MW	10/13/2015
312-871-8XXX	6529	T-MOBILE USA, INC.	CHICGOZN01	AS	09/15/2015	CHICAGO ZONE 01	IL	MW	10/13/2015
312-871-9XXX	6534	NEW CINGULAR WIRELESS PCS, LLC - IL	CHICGOZN01	AS	11/11/2015	CHICAGO ZONE 01	IL	MW	11/23/2015
312-871-XXXX	6529	T-MOBILE USA, INC.	CHICGOZN01	AS	08/28/2015	CHICAGO ZONE 01	IL

Business/Government Phones on the 312-871 Prefix

Phone	Name	Address
312-871-4500	Boston Consulting Group	225 West Wacker Drive Chicago 60606 US

Reports

Anonymous User from Lansing, Illinois

March 25, 2026 at 2:32 PM

312-871-8318 reported as a Robocall. Received on March 25, 2026 at 12:00 AM.

Anonymous User from Winder, Georgia

March 24, 2026 at 8:23 PM

312-871-4267 reported as a Live Voice or Other. Received on March 24, 2026 at 5:45 PM.
Call for Medical & prescriptions

Anonymous User from ,

January 7, 2026 at 2:41 PM

312-871-1906 reported as a Robocall. Received on January 7, 2026 at 1:13 PM.

Anonymous User from Palm Springs, California

December 3, 2025 at 3:46 PM

312-871-4922 reported as a Robocall. Received on December 2, 2025 at 10:38 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , IL

November 27, 2025 at 5:15 PM

312-871-5083 reported as a Robocall. Received on November 27, 2025 at 4:11 PM.

Anonymous User from Colorado, Colorado

September 19, 2025 at 3:49 PM

312-871-4242 reported as a Live Voice or Other. Received on September 17, 2025 at 12:00 AM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Elmhurst, Illinois

September 4, 2025 at 4:51 PM

312-871-3376 reported as a Robocall. Received on September 4, 2025 at 3:00 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Chicago, Illinois

May 29, 2025 at 3:22 PM

312-871-4895 reported as a Live Voice or Other. Received on May 19, 2025 at 10:47 AM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , OH

April 2, 2025 at 5:21 PM

312-871-9991 reported as a Live Voice or Other. Received on April 2, 2025 at 12:00 AM.

Anonymous User from , IL

March 15, 2025 at 10:54 AM

312-871-3649 reported as a Robocall. Received on March 14, 2025 at 12:00 AM.
Call for Medical & prescriptions

Anonymous User from Illinois, Illinois

January 24, 2025 at 12:29 PM

312-871-6248 reported as a Robocall. Received on January 24, 2025 at 11:26 AM.
Call for Medical & prescriptions

Anonymous User from Libertyville, Illinois

December 1, 2024 at 2:43 PM

312-871-5603 reported as a Live Voice or Other. Received on November 26, 2024 at 1:41 PM.

Anonymous User from Libertyville, Illinois

December 1, 2024 at 2:41 PM

312-871-5603 reported as a Live Voice or Other. Received on November 26, 2024 at 1:38 PM.

Anonymous User from Riverside, Illinois

November 25, 2024 at 5:26 PM

312-871-5716 reported as a Robocall. Received on November 25, 2024 at 4:25 PM.
Call for Medical & prescriptions

Anonymous User from Riverside, Illinois

November 13, 2024 at 11:04 AM

312-871-6085 reported as a Robocall. Received on November 13, 2024 at 10:00 PM.

Anonymous User from Riverside, Illinois

November 13, 2024 at 10:56 AM

312-871-6085 reported as a Robocall. Received on November 13, 2024 at 9:54 AM.

Anonymous User from Ankeny, Iowa

September 12, 2024 at 10:23 AM

312-871-4901 reported as a Live Voice or Other. Received on September 12, 2024 at 9:21 AM.
Call for Medical & prescriptions

Anonymous User from Midlothian, Texas

August 27, 2024 at 5:34 PM

312-871-4284 reported as a unwanted call. Received on August 27, 2024 at 10:03 AM.

Anonymous User from Midlothian, Texas

August 19, 2024 at 5:58 PM

312-871-4284 reported as a unwanted call. Received on August 15, 2024 at 4:25 PM.

Anonymous User from Midlothian, Texas

July 18, 2024 at 9:32 PM

312-871-4284 reported as a unwanted call. Received on July 18, 2024 at 5:51 PM.

Anonymous User from , IL

July 12, 2024 at 12:04 PM

312-871-8262 reported as a Live Voice or Other. Received on July 12, 2024 at 10:57 AM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from , IL

July 2, 2024 at 1:19 PM

312-871-3168 reported as a Live Voice or Other. Received on July 2, 2024 at 12:10 PM.
Call for No Subject Provided

Anonymous User from Midlothian, Texas

June 24, 2024 at 11:38 AM

312-871-4284 reported as a unwanted call. Received on June 23, 2024 at 8:46 PM.

Anonymous User from , TX

June 16, 2024 at 8:30 PM

312-871-4284 reported as a Robocall. Received on June 16, 2024 at 7:29 AM.

Anonymous User from Williamsville, Illinois

May 22, 2024 at 5:40 PM

312-871-4247 reported as a Live Voice or Other. Received on May 17, 2024 at 9:07 AM.
Call for Medical & prescriptions

Anonymous User from Ofallon, Illinois

March 29, 2024 at 4:59 PM

312-871-5838 reported as a Live Voice or Other. Received on March 29, 2024 at 3:52 PM.
Call for Medical & prescriptions

Anonymous User from , IL

January 22, 2024 at 11:19 AM

312-871-0131 reported as a Robocall. Received on January 22, 2024 at 9:27 AM.
Call for No Subject Provided

Anonymous User from Clinton, IL

October 28, 2023 at 7:25 PM

None reported as a Live Voice. Received on October 28, 2023 at 12:54 PM.
Unwanted call for Other Services
Caller ID indicated they called from 312-871-4159
Contacted via Wired

Anonymous User from Rockville, Maryland

July 24, 2023 at 12:36 PM

312-871-4272 reported as a Robocall. Received on July 24, 2023 at 12:25 PM.
Call for Dropped call or no message

Anonymous User from Midlothian, Texas

July 18, 2023 at 6:20 PM

312-871-4258 reported as a Robocall. Received on July 18, 2023 at 5:12 PM.
Call for Medical & prescriptions

Anonymous User from Abilene, Texas

July 11, 2023 at 1:26 PM

312-871-4258 reported as a Robocall. Received on June 25, 2023 at 1:09 PM.
Call for No Subject Provided

Anonymous User from Rockville, Maryland

June 28, 2023 at 2:42 PM

312-871-4272 reported as a Robocall. Received on June 28, 2023 at 2:39 PM.
Call for Dropped call or no message

Anonymous User from Chicago, Illinois

March 30, 2023 at 4:08 PM

312-871-0375 reported as a Robocall. Received on March 30, 2023 at 2:32 PM.

Anonymous User from Chicago, Illinois

March 6, 2023 at 10:13 AM

312-871-9426 reported as a Robocall. Received on March 6, 2023 at 9:04 AM.
Call for Warranties & protection plans

Anonymous User from Paul, Idaho

January 25, 2023 at 4:58 PM

312-871-5014 reported as a Robocall. Received on January 25, 2023 at 3:43 PM.
Call for Medical & prescriptions

Anonymous User from Stafford, Virginia

December 26, 2022 at 10:18 AM

312-871-3664 reported as a Robocall. Received on December 23, 2022 at 10:28 AM.
Call for Energy, solar, & utilities

Anonymous User from Chicago, Illinois

November 16, 2022 at 7:33 PM

312-871-5102 reported as a Live Voice or Other. Received on November 16, 2022 at 2:42 PM.
Call for Dropped call or no message

Anonymous User from Paragould, AR

May 2, 2022 at 1:50 AM

None reported as a Live Voice. Received on May 2, 2022 at 8:30 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4247
Contacted via Internet (VOIP)

Anonymous User from Lake Havasu City, AZ

March 10, 2022 at 3:03 AM

None reported as a Live Voice. Received on March 10, 2022 at 7:46 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4247
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Clanton, AL

February 2, 2022 at 2:50 AM

312-871-4247 reported as a Live Voice. Received on February 2, 2022 at 8:45 PM.
Unwanted call for unknown
Contacted via Internet (VOIP)

Anonymous User from West Orange, NJ

December 21, 2021 at 2:02 AM

None reported as a Live Voice. Received on December 21, 2021 at 8:48 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4242
Contacted via Internet (VOIP)

Anonymous User from Lancaster, KY

November 17, 2021 at 2:59 AM

None reported as a Prerecorded Voice. Received on November 17, 2021 at 4:53 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4243
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Burlington, MA

October 22, 2021 at 12:53 AM

None reported as a Live Voice. Received on October 22, 2021 at 8:42 PM.
Unwanted call for Other Services
Caller ID indicated they called from 312-871-4242
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Princeton, WV

September 29, 2021 at 11:34 PM

312-871-4243 reported as a Live Voice. Received on September 29, 2021 at 5:12 PM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Hillsboro, OR

September 23, 2021 at 6:55 PM

312-871-4243 reported as a Live Voice. Received on September 23, 2021 at 11:23 AM.
Unwanted call for other_services
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Olathe, KS

September 13, 2021 at 8:55 PM

877-220-4805 reported as a Prerecorded Voice. Received on September 13, 2021 at 1:45 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4243
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Beavercreek, OH

August 26, 2021 at 1:17 AM

312-871-4243 reported as a Abandoned Calls. Received on August 26, 2021 at 7:52 PM.
Unwanted call for other_services
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Metairie, LA

July 17, 2021 at 4:44 PM

312-871-4243 reported as a Live Voice. Received on July 17, 2021 at 12:00 AM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Frankfort, KY

June 27, 2021 at 3:34 PM

None reported as a Abandoned Calls. Received on June 27, 2021 at 8:39 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4243
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Frankfort, KY

June 23, 2021 at 8:39 PM

None reported as a Abandoned Calls. Received on June 23, 2021 at 4:23 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4243
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Frankfort, KY

June 23, 2021 at 8:35 PM

None reported as a Abandoned Calls. Received on June 23, 2021 at 3:48 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4243
Contacted via Wired

Anonymous User from Los Angeles, CA

June 19, 2021 at 11:59 AM

None reported as a Text Message. Received on June 19, 2021 at 11:53 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-9267
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from San Antonio, TX

May 12, 2021 at 3:12 AM

877-220-4875 reported as a Prerecorded Voice. Received on May 12, 2021 at 10:06 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4243
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Macomb, OK

March 19, 2021 at 7:12 PM

None reported as a Live Voice. Received on March 19, 2021 at 12:00 AM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4241
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Berea, KY

March 3, 2021 at 7:43 PM

None reported as a Live Voice. Received on March 3, 2021 at 2:30 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4243
Contacted via Internet (VOIP)

Anonymous User from Ironton, OH

December 23, 2020 at 7:59 PM

312-871-4241 reported as a Live Voice. Received on December 23, 2020 at 2:48 PM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Richmond Hill, GA

December 10, 2020 at 8:15 PM

312-871-4241 reported as a Live Voice. Received on December 10, 2020 at 2:57 PM.
Unwanted call for unknown
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from San Antonio, TX

November 7, 2020 at 9:35 PM

None reported as a Live Voice. Received on November 7, 2020 at 3:19 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4243
Contacted via Internet (VOIP)

Anonymous User from Hayward, CA

October 17, 2020 at 2:40 AM

None reported as a Abandoned Calls. Received on October 16, 2020 at 7:13 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4243
Contacted via Internet (VOIP)

Anonymous User from Spartanburg, SC

October 14, 2020 at 11:16 PM

None reported as a Live Voice. Received on October 14, 2020 at 6:36 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4243
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Clarksville, TN

September 23, 2020 at 10:41 PM

None reported as a Prerecorded Voice. Received on September 23, 2020 at 8:45 AM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-4241
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from , IL

January 19, 2017 at 7:43 AM

None reported as a Prerecorded Voice. Received on January 18, 2017 at 12:00 AM.
Unwanted call for unknown
Caller ID indicated they called from 312-871-0216
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Canton, Georgia

November 30, -0001 at 12:00 AM

312-871-5839 reported as a Robocall. Received on November 30, -0001 at 12:00 AM.
Call for Medical & prescriptions

Most 'popular' numbers on this prefix:

312-871-0XXX: 312-871-0134 | 312-871-0135 | 312-871-0198 | 312-871-0200 | 312-871-0212 | 312-871-0214 | 312-871-0217 | 312-871-0237 | 312-871-0238 | 312-871-0300 | 312-871-0350 | 312-871-0370 | 312-871-0403 | 312-871-0483 | 312-871-0484 | 312-871-0490 | 312-871-0493 | 312-871-0494 |
312-871-1XXX: 312-871-1180 | 312-871-1183 | 312-871-1188 | 312-871-1400 | 312-871-1408 | 312-871-1409 |
312-871-2XXX: 312-871-2700 | 312-871-2730 | 312-871-2737 | 312-871-2770 | 312-871-2771 | 312-871-2778 |
312-871-3XXX: 312-871-3100 | 312-871-3120 | 312-871-3160 | 312-871-3168 | 312-871-3600 | 312-871-3650 | 312-871-3651 | 312-871-3660 | 312-871-3666 |
312-871-4XXX: 312-871-4100 | 312-871-4110 | 312-871-4120 | 312-871-4150 | 312-871-4155 | 312-871-4230 | 312-871-4231 | 312-871-4233 | 312-871-4241 | 312-871-4242 | 312-871-4248 | 312-871-4260 | 312-871-4263 | 312-871-4266 | 312-871-4268 | 312-871-4400 | 312-871-4430 | 312-871-4433 | 312-871-4435 | 312-871-4440 | 312-871-4444 | 312-871-4500 | 312-871-4507 | 312-871-4508 | 312-871-4900 | 312-871-4901 | 312-871-4902 | 312-871-4997 | 312-871-4998 |
312-871-5XXX: 312-871-5000 | 312-871-5001 | 312-871-5010 | 312-871-5011 | 312-871-5015 | 312-871-5050 | 312-871-5100 | 312-871-5101 | 312-871-5105 | 312-871-5110 | 312-871-5120 | 312-871-5600 | 312-871-5650 | 312-871-5700 | 312-871-5710 | 312-871-5711 | 312-871-5719 | 312-871-5777 | 312-871-5820 | 312-871-5830 | 312-871-5850 |
312-871-6XXX: 312-871-6000 | 312-871-6020 | 312-871-6060 | 312-871-6080 | 312-871-6083 | 312-871-6088 | 312-871-6200 | 312-871-6210 | 312-871-6220 | 312-871-6240 | 312-871-6241 | 312-871-6247 |
312-871-8XXX: 312-871-8200 | 312-871-8250 | 312-871-8260 | 312-871-8265 | 312-871-8800 | 312-871-8801 | 312-871-8803 | 312-871-8809 | 312-871-8830 | 312-871-8833 | 312-871-8835 | 312-871-8888 |
312-871-9XXX: 312-871-9200 | 312-871-9210 | 312-871-9220 | 312-871-9260 | 312-871-9265 | 312-871-9400 | 312-871-9420 | 312-871-9422 | 312-871-9425 | 312-871-9450 | 312-871-9600 | 312-871-9650 | 312-871-9660 | 312-871-9666 | 312-871-9900 | 312-871-9990 | 312-871-9994 | 312-871-9999 |