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

312-840

You are reviewing the Area Code (NPA/NXX) report for 312-840. Did you mean to search the SMS short code 312840?

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.

Phone LookupTop ComplaintsArea CodesNPA-NXXiMessage
Examples: 206-739-5800, 206, 206-739, 48369

🇺🇸 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 Number312840
Basic Format312-840
NPA (Area Code)312
NXX840

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeCityState
312-840-XXXX9329ILLINOIS BELL TEL COCHICGOZN01ASCHICAGO ZONE 01IL

Business/Government Phones on the 312-840 Prefix

PhoneNameAddress
312-840-7000Burke Warren MacKay & Serritella
312-840-6605ETA Restaurant + Bar455 North Park Drive Chicago 60611 US
312-840-8040World of Whirlpool331 North LaSalle Drive Chicago 60654 US

Reports

Anonymous User from Huntley, Illinois

March 10, 2026 at 6:41 PM

312-840-7761 reported as a Robocall. Received on March 10, 2026 at 5:33 PM.
Call for Medical & prescriptions

Anonymous User from Inverness, Illinois

February 6, 2026 at 2:11 PM

312-840-7757 reported as a Live Voice or Other. Received on February 6, 2026 at 1:10 PM.
Call for Reducing your debt (credit cards, mortgage, student loans)

Anonymous User from Libertyville, Illinois

July 18, 2025 at 1:22 PM

312-840-6517 reported as a Live Voice or Other. Received on July 18, 2025 at 10:21 AM.

Anonymous User from Libertyville, Illinois

May 27, 2025 at 1:36 PM

312-840-2549 reported as a Live Voice or Other. Received on May 27, 2025 at 12:35 PM.
Call for Medical & prescriptions

Anonymous User from Libertyville, Illinois

March 26, 2025 at 4:11 PM

312-840-7577 reported as a Live Voice or Other. Received on March 11, 2025 at 8:15 AM.
Call for Medical & prescriptions

Anonymous User from Chicago, Illinois

March 5, 2025 at 11:54 AM

312-840-7761 reported as a Robocall. Received on March 5, 2025 at 8:55 AM.

Anonymous User from Chicago, Illinois

November 4, 2024 at 12:57 PM

312-840-7766 reported as a unwanted call. Received on November 4, 2024 at 7:39 AM.
Call for Dropped call or no message

Anonymous User from Libertyville, Illinois

October 10, 2024 at 1:39 PM

312-840-7734 reported as a Live Voice or Other. Received on October 10, 2024 at 12:38 PM.
Call for Medical & prescriptions

Anonymous User from Port Orchard, Washington

August 21, 2024 at 5:45 PM

312-840-6297 reported as a Robocall. Received on August 21, 2024 at 12:10 PM.
Call for Medical & prescriptions

Anonymous User from Chicago, Illinois

February 7, 2024 at 5:33 PM

312-840-3325 reported as a unwanted call. Received on February 7, 2024 at 2:38 PM.
Call for Dropped call or no message

Anonymous User from , IL

November 6, 2023 at 3:39 PM

312-840-9033 reported as a Live Voice or Other. Received on November 1, 2023 at 1:28 PM.

Anonymous User from , IL

February 28, 2023 at 1:43 PM

312-840-2951 reported as a Live Voice or Other. Received on February 28, 2023 at 10:20 PM.

Anonymous User from Chicago, Illinois

February 11, 2023 at 1:58 PM

312-840-1359 reported as a Robocall. Received on February 10, 2023 at 9:55 AM.
Call for Dropped call or no message

Anonymous User from , IL

January 22, 2023 at 2:29 PM

312-840-1910 reported as a Live Voice or Other. Received on December 20, 2022 at 8:07 AM.
Call for No Subject Provided

Anonymous User from , IL

January 22, 2023 at 2:22 PM

312-840-1724 reported as a Live Voice or Other. Received on December 16, 2022 at 11:07 AM.
Call for No Subject Provided

Anonymous User from , IL

January 22, 2023 at 2:19 PM

312-840-1910 reported as a Robocall. Received on December 20, 2022 at 8:07 AM.
Call for No Subject Provided

Anonymous User from Orlando, Florida

January 13, 2023 at 1:03 PM

312-840-6239 reported as a Live Voice or Other. Received on December 21, 2022 at 3:01 PM.

Anonymous User from , IL

December 20, 2022 at 11:10 AM

312-840-3779 reported as a Live Voice or Other. Received on December 20, 2022 at 10:09 AM.

Most 'popular' numbers on this prefix:

312-840-1XXX: 312-840-1300 | 312-840-1308 | 312-840-1314 | 312-840-1350 | 312-840-1354 | 312-840-1355 | 312-840-1700 | 312-840-1720 | 312-840-1722 | 312-840-1724 | 312-840-1747 | 312-840-1777 | 312-840-1911 | 312-840-1917 | 312-840-1919 | 312-840-1993 | 312-840-1997 | 312-840-1998 |
312-840-2XXX: 312-840-2992 | 312-840-2997 | 312-840-2998 |
312-840-3XXX: 312-840-3300 | 312-840-3320 | 312-840-3322 | 312-840-3323 | 312-840-3330 | 312-840-3333 | 312-840-3770 | 312-840-3776 | 312-840-3777 | 312-840-3778 |
312-840-4XXX: 312-840-4100 | 312-840-4104 | 312-840-4105 | 312-840-4192 | 312-840-4197 | 312-840-4198 | 312-840-4300 | 312-840-4380 | 312-840-4383 | 312-840-4387 |
312-840-5XXX: 312-840-5500 | 312-840-5511 | 312-840-5550 | 312-840-5553 | 312-840-5555 |
312-840-6XXX: 312-840-6200 | 312-840-6290 | 312-840-6299 | 312-840-6600 | 312-840-6601 | 312-840-6606 | 312-840-6607 | 312-840-6652 | 312-840-6660 |
312-840-7XXX: 312-840-7000 | 312-840-7002 | 312-840-7003 | 312-840-7040 | 312-840-7070 | 312-840-7500 | 312-840-7507 | 312-840-7570 | 312-840-7575 | 312-840-7577 | 312-840-7700 | 312-840-7760 | 312-840-7762 | 312-840-7764 | 312-840-7770 | 312-840-7777 | 312-840-7900 | 312-840-7970 | 312-840-7975 | 312-840-7977 | 312-840-7997 | 312-840-7998 |
312-840-8XXX: 312-840-8500 | 312-840-8501 | 312-840-8556 | 312-840-8570 | 312-840-8575 | 312-840-8577 |
312-840-9XXX: 312-840-9000 | 312-840-9020 | 312-840-9030 | 312-840-9031 | 312-840-9033 | 312-840-9090 |