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

Top 20 Robocallers to San Francisco Bay Area, CA in November 2020

Robocaller Place of Origin Carrier Caller ID Caller Type
1. 888-934-6489 Toll Free Toll Free Comcast Customer Call
2. 877-647-8552 Toll Free Toll Free Wells Fargo Bank/Credit Card Payment Reminder
3. 562-401-5940 Downey, CA Frontier Prescription Shipped Alert Service Alert
4. 510-502-0533 Oakland, CA T-Mobile Unknown Unknown Robocaller
5. 925-248-9529 San Ramon, CA Bandwidth.com CLEC, LLC Prison Free Call Prison Call Consent
6. 855-885-5834 Toll Free Toll Free Synchrony Bank Bank/Credit Card Payment Reminder
7. 833-532-2944 Toll Free Twilio Health Insurance Spam Health Insurance Spam
8. 949-625-6239 Ladera Ranch, CA Level 3 Communications Scam Likely Unknown Robocaller
9. 510-992-3228 Oakland, CA Google Voice Religious Spam Fax Delivery Scam
10. 917-341-7622 Flushing, NY Inteliquent Prison Call Consent Call Alert
11. 713-568-6986 Houston, TX Bandwidth.com CLEC, LLC Prison Call Payment Prison Call Consent
12. 800-528-4800 Toll Free Toll Free Fraud Alert Credit Card Debt Collector
13. 800-933-9555 Toll Free Toll Free Vehicle warranty scam Unknown Robocaller
14. 650-509-5603 Invalid Number Inteliquent Home Mortgage Scam Home Mortgage Scam
15. 307-323-2104 Invalid Number Inteliquent Consumer Svc Generic Scammer
16. 866-752-7753 Toll Free Toll Free Apple iCloud Scam Apple iCloud Scam
17. 206-453-2329 Seattle, WA Bandwidth.com CLEC, LLC Google Voice Call Answer Google Voice Call Answer
18. 800-947-5096 Toll Free Toll Free AT&T Service Payment Reminder
19. 800-266-2278 Toll Free Zipwhip Comcast Customer Call
20. 424-251-5297 Lomita, CA Level 3 Communications Scam Likely 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...