On 10/26/2015 I received an automated call and the message stated

"From IRS,
Internal Revenue Services
The reason of this call is to inform you that IRS is filing lawsuit against you. To get more information about this case file please call immediately on our department number 202-470-3314 i repeat 202-470-3314 Thank you"

From extensive online research and contacting the IRS ive determined it is a hoax. The number was no longer in service when I attempted to call back, but the IRS stated that, should they pursue any taxes owed or lawsuits, you would be contacted via postal service as well as an IRS agent would contact you in person at your residence or place of employment. They do not share any information about you or your case with anyone. All they would do is try to ascertain your whereabouts, including where you live or work and when you are expected to be at either location. NO OTHER INFORMATION IS PROVIDED and THEY WILL NEVER ASK YOU FOR A PAYMENT OVER THE PHONE OR IN PERSON.
Kosta P
 Nov 01st, 2015