The YouMail Robocall Index™ estimates monthly robocall volume in the US, as well as in various regions, and highlights the worst offenders. The index works by extrapolating the data collected from the many tens of millions of calls made each month to YouMail users.

YouMail has stopped over 1 billion robocalls from ever being made — and counting! Totally free service.

July 2018 Area Code 773 Robocall Data

38.0 million robocalls were placed to area code 773 in July 2018,equaling roughly 12.3 calls per person affected.

Top 20 Robocallers to Area Code 773 in July 2018 (by volume)

Updated 8/1/2018

Robocaller Caller ID Caller Type
866-718-4777 Securus Inmate Prison Inmate
800-955-6600 Capital One Payments/Collections Payments/Debt
800-266-2278 Comcast Customer Service/Bill Collector Cable Company Debt Collection
855-222-8463 Comcast Cable Company
866-890-3387 First Premier Bank Payments/Debt
888-222-4227 Santander Payments/Debt
877-710-1116 Collect Call from Prison Prison Inmate
844-740-3175 Fingerhut Retail Debt Collection
773-302-2921 Car Warranty Scam Vehicle Warranty Scam
866-466-4502 Allied Interstate Financial Services
210-520-1454 Chase Payments/Debt
866-214-9536 Prison Call Consent Prison Inmate
614-890-1025 Debt Collection Scam Call Payments/Debt
773-377-9685 Robocaller Unknown
217-801-9331 Verizon Wireless Phone Company
913-312-5191 Comenity Bank Debt Collection Bank Debt Collection
847-426-9203 Chase Bank Debt Collection
855-563-5635 Chrysler Capital Auto Finance Auto Loan Debt Collection
855-306-6998 Ally Financial Financial Lender
800-522-2455 ADT Security Systems Home Security

Illinois Cities in Affected Area

Arlington Heights, Bensenville, Calumet City, Chicago, Cicero, Des Plaines, Dolton, Elk Grove Village, Elmwood Park, Evanston, Evergreen Park, Harwood Heights, Hinsdale, Lincolnwood, Mount Prospect, Oak Brook, Oak Park, Park Ridge, Riverdale, River Grove, Schiller Park, Summit Argo, Wood Dale

Getting Harassed by Robocalls?

Try YouMail's reverse phone lookup in our community directory! It's the place where millions of YouMailers go to search for and report nuisance phone numbers.

Every Telecom Service Can Now Stop Robocalls

The same API YouMail uses to reliably identify and block robocalls is now available to protect everyone. It's just one simple API call to determine whether a caller is a problem.
Single String to YouMail's server
Telco Sends a Number Calling in:
curl ''
Virtually instantaneous response to telco company letting them know if the caller has been identified as a robo/spam, allowing the telco to block the call before the recipient is bothered.
YouMail Responds Instantly with Spam/Robo Flag:
{"statusCode":10000,"recordFound":true,"phoneNumber:"9991002000","spamRisk":{"level":1,"reasonLabel":"SPAM_OTHER","reasonCode":5999,"reasonMessage":"This caller has been determined to be a spammer."},"timestamp":"2016-10-05T00:55:50.526Z"}
A simple API call allows anyone to determine if a number is definitely spam, likely spam, or not spam. The results are drawn directly from our intelligent algorithms that combine call patterns and crowdsourced spam data.
Nearly 15 billion robocalls were made in the U.S. during the first half of 2017, according to YouMail, which provides anti-robocall services.
If it seems like you're getting more robocalls than ever, experts say you're right. But the people who are calling are not telemarketers.
For all the fancy technology of smartphones, robocalls remain a nearly unstoppable problem.
Robocalling soars despite 'Do Not Call' registry, as scammers 'couldn't care less' about bothering consumers.