Looks like those pesky IRS scammers got themselves a new number! Had all of the telltale signs, from the threat of a lawsuit right down to that automated robotty voice recording.

If you receive a call from this number, hang up immediately, and whatever you do, do not give ANY information away. Report the number to TIGTA and the FTC, and be wary of similar calls. You can also find additional information about these scams here.