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312 Phone Number Lookup: Chicago, IL

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Who Is Calling From Area Code 312?

Downtown Chicago and the central business district anchor the 312 area code, home to major corporate and civic institutions. Calls arrive from Boeing regional offices, Cook County Government, Rush University Medical Center, DePaul University, and the Chicago Transit Authority.

312 Phone Numbers Recently Reported as Spam

312 area code numbers reported as unwanted calls to the FTC in the last 30 days.

Phone Number Complaints Last Reported
(312) 241-1457
8
(312) 792-8244
7
(312) 756-8874
6
(312) 653-2073
5
(312) 702-2488
4
(312) 381-8806
3
(312) 428-9618
2
(312) 548-1007
2
(312) 656-7824
2
(312) 893-4813
2

Common Area Code 312 Phone Scams

Chicago's 312 area code is seeing a high volume of IRS arrest warrant threats and fake debt collection calls. The callers pretend to be law enforcement or government agents to intimidate you into paying non-existent fines.

IRS Aliases: None specified
Profane robocallers threaten property monitoring and arrest to extort personal data.
Debt Collectors Aliases: Ms. Lopez, Allison, My Cash Now
Fake process servers demanding HR signatures to extract payments for 2012 payday loans.
Microsoft / Antivirus Support Aliases: None specified
Threats of $399 automatic deductions to trick victims into granting remote computer access.
Grubhub Delivery Aliases: Mikail, Victoria
Drivers using masked Chicago numbers steal food while marking orders as delivered.
Cook County Sheriff / Narcotics Aliases: Rob Johnson
Impersonators threaten drug investigations to extort immediate cash to "close the case."
CDC / University of Chicago Aliases: National Immunization Survey
Abusive 11 PM surveys fishing for invasive data on children to build malicious databases.
General Public (SMS) Aliases: Elena, Anna, Amelia, Andrew
"Wrong number" texts discussing cheating boyfriends used as bait for romance/phishing scams.

User Reports

IRS

"This pre recorded message is to notify you that I RS has issued an arrest warrant against you right now you and your physical property both are being monitored, and it's very important that I do hear back from you as soon as possible before we proceed further in any legal matter."

Debt Collectors

"Got a voicemail from this number stating that they needed me to sign documents and have HR or my supervisor be a witness since they were coming to my place of work between 12 and 5 pm."

Microsoft / Antivirus Support

"I keep getting robo calls which leaves messages on my phone saying they are going to deduct $399 from my bank account for renewal of subscription. I dont have any subscriptions."

Grubhub Delivery

"This person picked up my GrubHub order and stole it. Instantly reported and fully refunded. Also from upstate NY, buyers beware."

Cook County Sheriff / Narcotics

"Called said they were Chicago Narcotics team , they stated I bought a Narcotic on line . No never . He said I have a clean record so I can just pay amount to close case .. Scam !"

CDC / University of Chicago

"Asking about minor children at home, do not provide any information, possible pedophile database creation."

General Public (SMS)

"Hi Amelia. Are you busy this week? Let's order some take out and get together.. Seems that Andrew and I are over, I think he cheated on me -Elena"

Where is area code 312 located?

Area code 312 serves the city of Chicago, specifically downtown, the Chicago Loop, and its immediate surrounding areas. It is bounded by North Avenue on the north, Western Avenue on the west, and 35th Street on the south, with Lake Michigan to the east.

Counties Served:

  • Grundy (portions)
  • Kane (portions)
  • Kankakee (portions)
  • McHenry (portions)
  • Will (portions)

Major Cities:

  • Chicago

Overlay System

Area code 312 is part of an overlay complex with area code 773 and area code 872 . 312 was created in 1947. Area code 773 was introduced on October 11, 1996, and area code 872 was introduced on November 7, 2009. All local calls in Chicago require ten-digit dialing.

FAQs About 312 Phone Numbers

Is area code 312 a scam?

No, 312 is a legitimate area code serving downtown Chicago. As one of the country's most recognized prefixes, 312 carries immediate credibility, which makes it highly attractive to fraudsters running spoofing campaigns.

Why do I get spam calls from area code 312?

Law enforcement impersonation is highly specific to this market, with callers pretending to be from the Chicago Narcotics team offering to close fabricated investigations for payment. IRS arrest-warrant robocalls and wrong-number romance bait texts using names like Elena are also heavily reported.