How does one do that?

To file complaints on Foreign company's and scams:

https://www.econsumer.gov/#crnt
eConsumer.gov: Report Your Complaint
E-mail: econsumerwb@ftc.gov
http://800notes.com/forum/ta-d20d86fdc3e145c/reporting-international-scams

Federal:
https://www.ftccomplaintassistant.gov/#&panel1-1
https://consumercomplaints.fcc.gov/hc/en-us
https://complaints.donotcall.gov/complaint/complaintcheck.aspx?panel=2

By State DNC lists:
http://800notes.com/res/DoNotCall.aspx

FCC Abandoned Calls Complaint form:
http://www.fcc.gov/cgb/consumerfacts/1088D-R.pdf
email:  fccinfo@fcc.gov

I got a call from this number earlier today. I'm on the don't call list and when I told him that he feinted not understanding me then he said ' f### you motherf#####' . I think I'll look into a legal response to this call.

Number has called multiple times stating they can reduce credit card debt, pressed 1 to speak with someone and have number removed from their call list.  Man on the other end told me "NO" he will not remove my number.  I let him know I would report him as it is illegal to not do so after my request.  He stated I should go F**ing report him and then asked when the last time I shared my p***y.  I asked to speak to a supervisor and he refused and continued to use foul language.  This is a credit card scam linked to a personal verizon cell phone number and when you call back there is no company name presented and says the number cannot be reached.

Just called my home phone.  Never left a message.