I normally don't post twice on the same number, but... Went back today to my call log. Although the calls didn't actually ring through to me because I blocked the number, phone records show they called exactly ten more times yesterday, and twice more today... 8 of the ten yesterday happened boom boom boom right on top of each other. 5:20 local time.
They said they were the US government and that I was gonna be arrested. I told them to stop calling me and they were full of bs. They called right back and insisted that I was gonna be arrested. I hung up and blocked this number.