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312-424

You are reviewing the Area Code (NPA/NXX) report for 312-424. Did you mean to search the SMS short code 312424?

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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 Number312424
Basic Format312-424
NPA (Area Code)312
NXX424

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeCityState
312-424-XXXX9329ILLINOIS BELL TEL COCHICGOZN01ASCHICAGO ZONE 01IL

Business/Government Phones on the 312-424 Prefix

PhoneNameAddress
312-424-4288Morningstar, Inc.
312-424-9200Jimmy John's216 West Jackson Boulevard Chicago 60606 US

Reports

Anonymous User from Bethesda, MD

June 24, 2025 at 7:01 PM

reported as a Prerecorded Voice. Received on June 24, 2025 at 2:52 PM.
Unwanted call for Medicare Medicaid Services
Caller ID indicated they called from 312-424-9374
Contacted via Wireless (cell phone/other mobile device)

Anonymous User from Horn Lake, MS

January 10, 2023 at 7:59 PM

312-424-2777 reported as a Live Voice. Received on January 10, 2023 at 1:00 PM.
Unwanted call for Other Services
Contacted via Wired

Anonymous User from , IL

November 3, 2022 at 7:05 PM

312-424-8586 reported as a Robocall. Received on November 3, 2022 at 5:54 PM.
Call for Medical & prescriptions

Anonymous User from Chicago, Illinois

October 7, 2022 at 12:48 PM

312-424-4345 reported as a Live Voice or Other. Received on October 7, 2022 at 11:44 AM.
Call for Home security & alarms

Anonymous User from , MD

July 12, 2022 at 7:54 PM

312-424-0300 reported as a Robocall. Received on July 12, 2022 at 4:19 PM.

Most 'popular' numbers on this prefix:

312-424-0XXX: 312-424-0300 | 312-424-0305 | 312-424-0400 | 312-424-0401 |
312-424-2XXX: 312-424-2700 | 312-424-2770 | 312-424-2771 | 312-424-2777 |
312-424-4XXX: 312-424-4200 | 312-424-4202 | 312-424-4280 | 312-424-4282 | 312-424-4285 | 312-424-4300 | 312-424-4333 | 312-424-4340 | 312-424-4345 | 312-424-4350 |
312-424-8XXX: 312-424-8500 | 312-424-8501 | 312-424-8580 | 312-424-8581 | 312-424-8585 |
312-424-9XXX: 312-424-9301 | 312-424-9303 | 312-424-9333 | 312-424-9337 | 312-424-9339 | 312-424-9355 |