Got the same..

Received a suspicious call on March 31, 2016 from telephone number 206-538-2578 from someone claiming to be from the U.S. Treasury Department. A deep male, garbled voice urged us to call 206-538-2578 several times, stating that if we did not call back, it would be a Federal Criminal Offense and something about we would need to appear before a Magistrate and Grand Jury. We did not answer the call; the call was left as a message on our phone machine.

Reported this call to:
(1) Government imposter scams:  https://www.ftccomplaintassistant.gov/#&panel1-1

(2) Treasury Department:  https://www.treasury.gov/about/organizational ... otlineForm.aspx

This is FRAUD.  Please report these calls so they can be stopped! You can report anonymously if you want.

Another bogus, scam call

It was an indian acent and they claimed to be from the US Treasury. They said they were looking for my "details" although I gave them no details - probably a fishing call.

Yes they left message claimed ng to be US Treasurary.  Saying it wd be a federal offense if i didnt respond