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December 2021 Area Code 510 Robocall Data

Calls Placed
13.0 Million
(-8.4% MoM)
Per Day
Per Hour
Per Second
Avg. Calls Per Person

See historical robocalls by

Top 25 Robocallers to Area Code 510 in December 2021

Robocaller Place of Origin Carrier Caller ID Caller Type
1. 510-972-6830 San Francisco Bay Area, CA teli Communications Scammer Unknown Robocaller
2. 800-691-8755 Toll Free Toll Free Mortgage Loan Spam Financial Customer Call
3. 510-231-1100 San Francisco Bay Area, CA Bandwidth.com CLEC, LLC School Announcement Order Followup
4. 800-743-5000 Toll Free Toll Free Power Outage Alert Service Payment Reminder
5. 510-925-7001 San Francisco Bay Area, CA T-Mobile Tanisha Levels Unknown Robocaller
6. 800-942-3767 Toll Free Twilio Aesop Substitute Teacher Alert
7. 510-992-3228 San Francisco Bay Area, CA Google Voice Religious Spam Fax Delivery Scam
8. 925-248-9529 San Francisco Bay Area, CA Bandwidth.com CLEC, LLC Prison Free Call Prison Call Consent
9. 713-568-6986 Houston, TX Level 3 Communications Global Tel Link Timeshare Scam
10. 877-586-9367 Toll Free Toll Free Western Dental Customer Call
11. 510-567-4465 San Francisco Bay Area, CA Inteliquent Health Insurance Scam Health Insurance Scam
12. 888-934-6489 Toll Free Toll Free Comcast Customer Call
13. 855-844-0114 Toll Free Toll Free Synchrony Bank Medical Test Results
14. 866-532-0423 Toll Free Toll Free Citibank Bank/Credit Card Payment Reminder
15. 510-345-5585 San Francisco Bay Area, CA Inteliquent Credit One Bank Financial Customer Call
16. 510-929-4295 San Francisco Bay Area, CA Inteliquent Health Insurance Scam Health Insurance Scam
17. 480-900-1031 Phoenix, AZ Bandwidth.com CLEC, LLC General Alert Service Alert
18. 562-401-5940 Los Angeles, CA Frontier Kaiser Permanente Service Alert
19. 877-647-8552 Toll Free Toll Free Wells Fargo Bank/Credit Card Payment Reminder
20. 209-891-3259 Fresno, CA Inteliquent Unknown Unknown Robocaller
21. 844-647-4866 Toll Free Toll Free Credit One Bank Unknown Robocaller
22. 855-769-8175 Toll Free Toll Free Telemarketing Customer Survey
23. 510-561-0973 San Francisco Bay Area, CA Unknown loanDepot Mortgage Loan Spam
24. 800-575-5076 Toll Free Toll Free Debt Collector Debt Collector
25. 833-528-2785 Toll Free Zipwhip Katapult Policy Cancellation Alert

Robocalls by Category

California Cities in Area Code 510

Alameda, Albany, Berkeley, Castro Valley, Contra Costa, Crockett, El Sobrante, Emeryville, Fremont, Hayward, Hercules, Newark, Oakland, Pinole, Richmond, Rodeo, San Francisco, San Francisco Bay Area, San Jose, San Leandro, Sunnyvale, Union City, Walnut Creek

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.

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