Who called from 7127756964

Left a message claiming to be from a "Federal Magistrate" implying that if I didn't call back I'd be "avoiding a second attempt".

Called two hours apart on Sep 8, 2015. No message left. Caller ID displays Carroll IA.

Have called me about 5 times a day for about a month.  Yesterday i called the number and a man answered which was very hard to understand and i told him to remove me from his list.  He hung up without even acknowledging me.  When this man answered he said it was the us treasury department.  Figured if its that important, i would had gotten a registered letter.
I hope he stops calling.

Same as above.  Unique approach on the treasury legal action.   Almost want to call them back from a blocked number to understand their scam.

I received the same call. This was also after a 757 area code number called me saying that i owed taxes. That number is fraud, too.