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312-394

You are reviewing the Area Code (NPA/NXX) report for 312-394. Did you mean to search the SMS short code 312394?

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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 Number312394
Basic Format312-394
NPA (Area Code)312
NXX394

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateCityStateRegionBlock Effective Date
312-394-0XXX6529T-MOBILE USA, INC.CHICGOZN01AS06/16/2011CHICAGO ZONE 01ILMW06/28/2011
312-394-1XXX9329ILLINOIS BELL TEL COCHICGOZN01RTCHICAGO ZONE 01ILMW
312-394-2XXX9329ILLINOIS BELL TEL COCHICGOZN01RTCHICAGO ZONE 01ILMW
312-394-3XXX9329ILLINOIS BELL TEL COCHICGOZN01RTCHICAGO ZONE 01ILMW
312-394-4XXX9329ILLINOIS BELL TEL COCHICGOZN01RTCHICAGO ZONE 01ILMW
312-394-5XXX9329ILLINOIS BELL TEL COCHICGOZN01RTCHICAGO ZONE 01ILMW
312-394-6XXX9329ILLINOIS BELL TEL COCHICGOZN01RTCHICAGO ZONE 01ILMW
312-394-7XXX9329ILLINOIS BELL TEL COCHICGOZN01RTCHICAGO ZONE 01ILMW
312-394-8XXX9329ILLINOIS BELL TEL COCHICGOZN01RTCHICAGO ZONE 01ILMW
312-394-9XXX6529T-MOBILE USA, INC.CHICGOZN01AS06/16/2011CHICAGO ZONE 01ILMW06/28/2011
312-394-XXXX9329ILLINOIS BELL TEL COCHICGOZN01ASCHICAGO ZONE 01IL

Business/Government Phones on the 312-394 Prefix

PhoneNameAddress
312-394-8500First Northern Credit Union230 West Monroe Street Chicago 60606 US

Reports

Anonymous User from Vermilion, Ohio

September 26, 2025 at 9:37 AM

312-394-0003 reported as a Robocall. Received on September 26, 2025 at 9:34 AM.

Anonymous User from , IL

June 17, 2025 at 8:49 PM

312-394-4321 reported as a Robocall. Received on June 17, 2025 at 4:25 PM.

Anonymous User from Rockledge, Illinois

April 21, 2025 at 1:38 PM

312-394-7784 reported as a Robocall. Received on April 21, 2025 at 12:52 PM.
Call for Medical & prescriptions

Anonymous User from Elgin, Illinois

February 7, 2025 at 5:54 PM

312-394-4321 reported as a Live Voice or Other. Received on February 7, 2025 at 4:47 PM.
Call for Energy, solar, & utilities

Anonymous User from Modesto, CA

April 11, 2024 at 3:57 PM

312-394-9632 reported as a Text Message. Received on April 11, 2024 at 2:19 PM.
Unwanted call for Other Services
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Lemont, Illinois

March 1, 2024 at 10:28 AM

312-394-3033 reported as a Live Voice or Other. Received on February 29, 2024 at 1:55 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Minooka, IL

October 3, 2023 at 5:25 PM

None reported as a Live Voice. Received on October 3, 2023 at 12:00 PM.
Unwanted call for unknown
Caller ID indicated they called from 312-394-8500
Contacted via Internet (VOIP)

Anonymous User from , IL

February 8, 2023 at 2:25 PM

312-394-8807 reported as a Robocall. Received on February 8, 2023 at 12:11 PM.

Anonymous User from , IL

June 8, 2022 at 3:09 PM

312-394-4101 reported as a Robocall. Received on June 8, 2022 at 1:59 PM.
Call for Medical & prescriptions

Most 'popular' numbers on this prefix:

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312-394-3XXX: 312-394-3000 | 312-394-3030 | 312-394-3033 | 312-394-3037 | 312-394-3062 | 312-394-3933 | 312-394-3937 | 312-394-3939 | 312-394-3981 | 312-394-3987 | 312-394-3989 |
312-394-4XXX: 312-394-4100 | 312-394-4101 | 312-394-4105 | 312-394-4111 | 312-394-4120 | 312-394-4300 | 312-394-4301 | 312-394-4320 | 312-394-4321 | 312-394-4322 | 312-394-4350 |
312-394-7XXX: 312-394-7700 | 312-394-7770 | 312-394-7777 | 312-394-7780 | 312-394-7787 | 312-394-7788 |
312-394-8XXX: 312-394-8500 | 312-394-8501 | 312-394-8507 | 312-394-8800 | 312-394-8801 | 312-394-8803 | 312-394-8809 | 312-394-8848 | 312-394-8888 |
312-394-9XXX: 312-394-9200 | 312-394-9220 | 312-394-9250 | 312-394-9270 | 312-394-9272 | 312-394-9279 | 312-394-9632 | 312-394-9633 | 312-394-9639 | 312-394-9667 | 312-394-9668 | 312-394-9669 | 312-394-9900 | 312-394-9907 | 312-394-9909 | 312-394-9962 |