Got a call today from 229-231-3342. We did not pick up the call, allowed a message to be left on our answering machine. Intense sounding male voice with an accent. He didn't specify who the call was for, no company or agency name was left, just a threatening message and a return call number (tried to call to threaten them in return; no ring, just a quick busy signal). Recognized it as a scam but wanted to add our info to the rest. We got a couple of similar calls last year and reported them.
Link to helpful information from the IRS...
https://www.irs.gov/uac/Tax-Scams-Consumer-Alerts
Got same call as for 229-231-3343- same name indicating federal issue and would be called before a magistrate if I didn't call; didn't bother - had no notice from anyone in any other capacity
Same as Chris (15 Jan). Left message on answering machine. Important legal issue requiring attention. Sounded threatening. Most spam calls do not leave a message. Ignored this possibly illegal call.