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

Top 20 Robocallers to San Francisco, CA in January 2020

Robocaller Place of Origin Carrier Caller ID Caller Type
1. 877-609-5704 Toll Free Toll Free Citibank Bank/Credit Card Payment Reminder
2. 855-876-5347 Toll Free Toll Free SPAM Unknown Robocaller
3. 877-609-5710 Toll Free Toll Free Citibank Bank Debt Collector
4. 740-834-1496 Delaware, OH Zipwhip Citibank Bank/Credit Card Payment Reminder
5. 866-803-4839 Toll Free Toll Free Verizon Customer Call
6. 563-293-2558 Davenport, IA Bandwidth.com CLEC, LLC Prison Call Payment Prison Call Payment
7. 877-463-5346 Toll Free Toll Free SiriusXM Telemarketing
8. 628-206-8000 Invalid Number Teleport Communications Blanca Valle Unknown Robocaller
9. 833-902-0888 Toll Free Toll Free Unknown Unknown Robocaller
10. 628-262-4004 Invalid Number MCI Metro ATS SPAM Unknown Robocaller
11. 206-922-0880 Seattle, WA Global Crossing Local Services, Inc. Amazon Customer Call
12. 628-227-2359 Invalid Number Inteliquent Scam Likely Unknown Robocaller
13. 628-777-1838 San Francisco, CA Inteliquent Scam Likely Unknown Robocaller
14. 650-437-9532 San Mateo, CA Twilio Unknown Unknown Robocaller
15. 929-221-9030 Brooklyn, NY MCI Metro ATS Customer Call Unknown Robocaller
16. 213-814-2479 Los Angeles, CA Inteliquent Unknown Unknown Robocaller
17. 315-907-0880 Invalid Number Windstream Generic Robocaller Generic Robocaller
18. 415-212-7102 San Francisco, CA Inteliquent Random Spam Random Spam
19. 504-354-0261 Invalid Number Bandwidth.com CLEC, LLC LA METAIRIE Unknown Robocaller
20. 628-200-0248 San Francisco, CA Exiant Communications, LLC (628) 200-0248 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...