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.

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May 2018 Nationwide Robocall Data

4.1 billion robocalls were placed nationwide in May 2018,equaling roughly 12.5 calls per person affected.

Top 20 Robocallers Nationwide in May 2018 (by volume)


Updated 6/1/2018


Robocaller Est. National Calls Place of Origin Suspected Type of Call
800-955-6600 39,853,100 Toll Free Payments/Debt
336-436-9730 18,321,200 Greensboro, NC Health Insurance Spam Call
877-647-8552 15,611,100 Toll Free Payments/Debt
800-266-2278 14,485,300 Toll Free Cable Company Debt Collection
888-222-4227 13,111,000 Toll Free Payments/Debt
800-283-9801 12,254,800 Toll Free Payments/Debt
704-755-0250 11,707,800 Charlotte, NC Charity Scam
505-210-7610 11,490,800 Albuquerque, NM Health Insurance Spam Call
339-215-3157 10,806,100 Boston, MA Health Insurance Spam Call
754-240-0126 10,310,300 Fort Lauderdale, FL Health Insurance Spam Call
727-205-0332 9,699,000 Tampa, FL Health Insurance Spam Call
800-942-3767 9,648,400 Toll Free Job Availability Call
210-520-0146 9,325,100 San Antonio, TX Payments/Debt
704-560-1228 9,303,300 Charlotte, NC Credit Card Interest Rate
202-860-3406 8,861,600 Washington, DC Health Insurance Spam Call
351-277-2504 8,718,400 Danvers, MA Health Insurance Spam Call
217-450-9605 8,361,100 Chicago, IL Health Insurance Sales Call
541-223-5761 8,334,800 Eugene, OR Health Insurance Spam Call
800-947-5096 8,310,500 Toll Free Payments/Debt
314-450-8921 8,149,100 Saint Louis, MO Payments/Debt

Top 20 Affected Area Codes Nationwide in May 2018 (by volume)


Updated 6/1/2018



Area Code City State Est. Calls Received % Change MOM
404 Atlanta GA 78,571,700 17
704 Charlotte NC 70,733,700 141
214 Dallas TX 58,881,200 20
832 Houston TX 58,701,600 19
678 Atlanta GA 56,091,600 24
954 Miami FL 53,943,100 32
917 New York NY 46,210,500 17
310 Los Angeles CA 45,655,400 23
773 Chicago IL 39,199,300 9
347 New York NY 37,646,400 15
770 Atlanta GA 37,401,500 22
817 Dallas TX 37,380,800 10
407 Orlando FL 36,341,400 26
205 Birmingham AL 35,787,900 13
305 Miami FL 34,629,600 21
702 Las Vegas NV 34,355,400 19
901 Memphis TN 33,961,700 14
225 Baton Rouge LA 31,874,000 14
281 Houston TX 31,150,900 19
706 Augusta GA 30,310,400 19

City Breakdown

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 'https://dataapi.youmail.com/api/v2/phone/9991002000?format=json'
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.