Put Robocallers Out of Business

YouMail blocks robocalls and notifies the authorities.

150,000+ ratings

December 2021 Riverside, CA Robocall Data

Calls Placed
31.1 Million
(-9% MoM)
Per Day
Per Hour
Per Second
Avg. Calls Per Person

See historical robocalls by

Top 25 Robocallers to Riverside, CA in December 2021

Robocaller Place of Origin Carrier Caller ID Caller Type
1. 909-708-4482 San Bernardino, CA Inteliquent SmartFind Express Substitute Teacher Alert
2. 800-716-9711 Toll Free Toll Free Mortgage Loan Spam Mortgage Loan Spam
3. 805-834-2480 Invalid Number Bandwidth.com CLEC, LLC Home Mortgage Scam Home Mortgage Scam
4. 909-640-9884 Invalid Number Metro by T-Mobile Employment Opportunity Employment Opportunity
5. 844-206-8573 Toll Free Toll Free Spectrum Service Payment Reminder
6. 800-942-3767 Toll Free Twilio Aesop Substitute Teacher Alert
7. 713-568-6986 Houston, TX Level 3 Communications Global Tel Link Timeshare Scam
8. 866-914-5806 Toll Free Toll Free Spectrum Service Payment Reminder
9. 909-494-7205 San Bernardino, CA Inteliquent Unknown Unknown Robocaller
10. 951-571-7500 San Bernardino, CA Time Warner Cable Spammer School Announcement
11. 855-293-3726 Toll Free Toll Free Customer Survey Customer Survey
12. 909-895-6874 Anaheim, CA Inteliquent Health Insurance Scam Health Insurance Scam
13. 833-574-2273 Toll Free Toll Free Kaiser Permanente Customer Call
14. 909-899-3271 Rancho Cucamonga, CA Inteliquent Substitute Teacher Alert Substitute Teacher Alert
15. 951-381-8121 Banning, CA Inteliquent Prison Call Payment Prison Free Call
16. 605-884-4130 Watertown, SD Airus, Inc. PREMIER Bankcard Telemarketing
17. 513-831-2600 Milford, OH MCI Metro ATS Total Quality Logistics Employment Opportunity
18. 562-387-2858 Long Beach, CA Bandwidth.com CLEC, LLC Scam Likely Unknown Robocaller
19. 800-611-1911 Toll Free Toll Free Power Outage Alert Power Outage Alert
20. 866-344-5632 Toll Free Toll Free Hyundai Finance Loan Payment Reminder
21. 909-495-3483 San Bernardino, CA Inteliquent Prison Free Call Prison Free Call
22. 985-269-0156 Hammond, LA Bandwidth.com CLEC, LLC Delivery Alert Unknown Robocaller
23. 800-321-9637 Toll Free Twilio Exeter Finance Loan Payment Reminder
24. 909-232-8265 Fontana, CA Peerless Network Unknown Unknown Robocaller
25. 909-366-8802 Big Bear Lake, CA Unknown loanDepot Mortgage Loan Spam

Robocalls by Category

YouMail's Top 100 Robocallers

See which numbers are the highest volume robocallers!

How does the YouMail Robocall Index™ Work?

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.