Who called from 5598007991

Caller claims to be from US Treasury threatening you with court appearance unless you call

Received call saying it was from the "government" and threatening legal action unless you call the number right away

Received 2 phone calls from this number. This sounds like a phone scam since they did not actually use my name. Also, I received no supporting documentation in the mail.

The Message:
Hi this message is intended to contact you. My name is Steve Martin and I'm calling regarding enforcement actions executed by US treasury intending to receive your attention. Ignoring this will be an intentional second-attempt(?) to avoid initial appearance before Magistrate Judge or a grand jury for federal criminal offense. My number is 559-800-7991. I repeat it's 559-800-7991. I like you to cooperate with us and help us to help you. Thank you.

Received the same call, different name, a short time ago. Received other calls of this nature a month ago, but from a different number.

Received the same call a few minutes ago.