Block Robocalls for Free with YouMail.
Over 10 Million Users!

Top 25 Robocallers to Knoxville, TN in December 2021

Robocaller Place of Origin Carrier Caller ID Caller Type
1. 844-986-2169 Toll Free Toll Free Mortgage Loan Spam Financial Customer Call
2. 865-999-2111 Invalid Number Aerialink Wireless Medical Alert Spam Health Insurance Scam
3. 865-321-8193 Knoxville, TN Inteliquent Health Insurance Scam Health Insurance Scam
4. 877-208-4361 Toll Free Toll Free [email protected] Medical Customer Call
5. 731-859-2621 Whiteville, TN Inteliquent Securus Technologies Prison Call Consent
6. 866-419-9370 Toll Free Toll Free Synchrony Bank Bank Debt Collector
7. 855-215-1830 Toll Free Toll Free Ambetter Customer Education
8. 865-375-5002 Jefferson City, TN Inteliquent SmartFind Express Unknown Robocaller
9. 800-318-2596 Toll Free Toll Free Medical Customer Call Insurance Customer Call
10. 629-205-0624 Invalid Number Inteliquent LIKELY SPAM Unknown Robocaller
11. 865-290-5777 Invalid Number Telnyx, LLC Spam Unknown Robocaller
12. 877-698-3261 Toll Free Toll Free One Call Now General Alert
13. 800-568-0156 Toll Free Toll Free Synchrony Bank Financial Customer Call
14. 865-346-8948 Invalid Number Unknown loanDepot Mortgage Loan Spam
15. 888-934-6489 Toll Free Toll Free Comcast Customer Call
16. 423-347-6331 Rogersville, TN Inteliquent Unknown Unknown Robocaller
17. 865-867-7509 Invalid Number Level 3 Communications Scam Likely Unknown Robocaller
18. 318-746-1250 Barksdale Afb, LA Bell South Prison Prepaid Call Prison Prepaid Call
19. 800-438-4357 Toll Free Toll Free ADT Security Services Home Security Scam
20. 833-525-8081 Toll Free Toll Free Spectrum Service Payment Reminder
21. 877-741-4113 Toll Free Toll Free Healthcare Receivables Group Medical Debt Collector
22. 865-622-8108 Knoxville, TN Inteliquent Customer Survey Customer Survey
23. 423-201-4163 Caryville, TN Level 3 Communications Medical Customer Call Insurance Customer Call
24. 865-292-2120 Knoxville, TN Knology Call Alert Payment Reminder
25. 865-606-2849 Invalid Number Cricket Unknown Unknown Robocaller

Robocalls by Category

How the YouMail Robocall Index™ Works

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.

Working on a robocall story? We can help!

We're the robocall experts. We have an unbelievable amount of data and insight and we just love talking about how to stop robocalls. If you're working on a story and need insight from the experts, we'd love to hear from you.
Thank you for contacting us. We'll be in touch shortly.

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.


as seen on...