Male caller stated that I had won money from a sweepstakes and instructed me to contact Mark Coleman at U.S. Customs at phone number 718-285-8805.

Exact same experience as above.  I was told I by "Agent Grant" from the department of justice.(with a thick accent) that I won $875,000.   He said he received a letter from JFK airport and I was to call Mike Coleman at U.S. customs.  It seems a little odd that the Department of Justice handles sweepstakes prizes.  Also, he didn't give a clear name of the sweepstake I supposedly won.  I'm going to call Mike Coleman just to find out their request (scam) so I can post what they are asking--I'm sure they will want money sent to claim this prize.  

I have received several phone messages from the Justice Department from Agent Grant ,asking me to call back. I figured
it was a scam. I want to know how he got my cell number and my name.

I got called today twice by this number.  The caller was a male with a thick accent. He stated that he was an agent from the IRS and that if i or my lawyer didnt call him back then good luck to me as bad things will unfold.

http://800notes.com/forum/ta-de071afa5bd5041/dangerous-new-trend-in-irs-scams

http://www.irs.gov/uac/Tax-Scams-Consumer-Alerts
http://www.treasury.gov/tigta/contact_report.shtml
http://800notes.com/forum/ta-8c2f64bf2b91fa5/irs-warns-of-telephone-scam

http://bigstory.ap.org/article/4b849c65e54346 ... leader-irs-scam

Report the Calls to the real IRS here:
•report the incident to the Treasury Inspector General for Tax Administration at 800-366-4484.
•You can also file a complaint with the Federal Trade Commission at FTC.gov. Add "IRS Telephone Scam" to the comments in your complaint.

To file complaints on Foreign company's and scams:
http://800notes.com/forum/ta-d20d86fdc3e145c/reporting-international-scams
https://www.econsumer.gov/#crnt
eConsumer.gov: Report Your Complaint
E-mail: econsumerwb@ftc.gov