Do a search on call blocking devices and phones.If its a cell phone, there are free call blocking apps out there including trac & straight talk.
http://800notes.com/forum/ta-5d4e343675a5629/call-blocking-devices
Report your callers here, not just to the DNC alone: [/center]

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.huffingtonpost.com/entry/when-you- ... 4b08cd3359d61d0
http://www.fcc.gov/cgb/consumerfacts/1088D-R.pdf
email:  fccinfo@fcc.gov

To file complaints on Foreign company's and scams:
• Read up on it here:
http://800notes.com/forum/ta-d20d86fdc3e145c/reporting-international-scams
• https://www.econsumer.gov/#crnt
eConsumer.gov: Report Your Complaint
E-mail: econsumerwb@ftc.gov[/align]

This number called me today saying I have an overdue pharmacy bill for $15.00 and offering to help me pay on phone. Glad I hung up and checked on-line.

Caller is Express Scripts about a prescription being ready to ship. Usually calls for outstanding balance due.