Left messages, said IRS is filing lawsuit. Doesn't work that way. They would serve you a subpoena. Pure scam. Reported to national do no call. Blocked...
A little advice, remove your number from the do not call list. You will get less of these scammers calling you. The do not call list gives access to telemarketers. They do this thinking they will look at the numbers and respect the do not call list and not call you. But guess what, the do not call list just gives them a free list of numbers to call. Why would they obey the do not call list if there is no consequence for them calling you. Try it, try filing hundreds, thousands of compliance, try to get the do not call list to do anything for those that keep calling and harassing you. Even with proof and records...nothing happens to these callers.