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December 2016 San Francisco, CA Robocall Data

The robocall sample size to San Francisco, CA in December 2016 is not large enough to provide conclusive data. The area received robocalls, but precise impact data meeting YouMail's standards can not be determined.



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Top 20 Robocallers to San Francisco, CA in December 2016

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

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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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