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Top 20 Robocallers to San Francisco, CA in December 2016

Robocaller Place of Origin Carrier Caller ID Caller Type
1. 415-349-5750 San Francisco, CA Skype PagerDuty General Alert
2. 866-576-8284 Toll Free Toll Free Debt Collector Debt Collector
3. 408-610-4900 San Jose, CA CLEC, LLC Aol Unknown Robocaller
4. 786-597-9374 Miami, FL Metro by T-Mobile Spam Unknown Robocaller
5. 800-639-6111 Toll Free Toll Free Social security Unknown Robocaller
6. 857-999-3703 Cambridge, MA Local Access LLC Unknown Unknown Robocaller
7. 917-396-0858 New York, NY Sprint NAME Unknown Robocaller
8. 917-512-8172 New York, NY MCI Metro ATS Drew At Datadog Unknown Robocaller
9. 944-223-9100 Invalid Number Unknown (944) 223-9100 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.

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