The DNC isn't a call blocker and can not protect you from the illegal callers, extortion scammers, foreign country's and frauds. Criminals do not obey laws simply said.    They use spoofed numbers which make it hard to track them down.. it takes time to do this and many subpoenas for call records.

http://consumerist.com/2015/07/22/45-attorney ... lock-robocalls/ http://800notes.com/forum/ta-c3355f57425c0d5/ ... alls-to-the-fcc
http://800notes.com/forum/ta-c5c7e69f0670886/ ... -spoofing-calls
http://800notes.com/forum/ta-c46b87360deec56/ ... -unwanted-calls
********
Consider getting a call blocking device or phone.. You can google them and many are around $40.00 or so. If its a cell phone, some already have call blocking, if not, there are free apps on the web that will work for some. You can google this. If you have a smart phone, there is a free app called call control. Iphones appear to have apps also. Another one is called Mr. Number. For tracfone & straight talk:

https://play.google.com/store/apps/details?id ... .tracfone&hl=en
http://extras.straighttalk.com/en
http://www.youmail.com/home/carriers/straight-talk/block-number
https://www.straighttalkwirelessforum.com/viewtopic.php?f=6803&t=55006

Report your callers here, not just to the DNC alone:

https://www.ftccomplaintassistant.gov/#&panel1-1
https://esupport.fcc.gov/ccmsforms/form1088.action
https://complaints.donotcall.gov/complaint/complaintcheck.aspx?panel=2

For text messages: forwarding any text message spam you get to the short code  “7726,” which spells “spam” on most phones, to alert your network operator to the abuse. ATT won't accept 7726 But they will accept BLOCK and return a message that the web site is blocked. forward the texts to 7726 or BLOCK, depending on your phone carrier.

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

To file complaints on Foreign company's:
eConsumer.gov: Report Your Complaint
E-mail: econsumerwb@ftc.gov

Called at 10:30 PM.  Nobody on the other end.  then "goodbye".  Tried calling back, number is disconnected.

Indian male. At first no one spoke. So I said good bye. Then the male said do not hang up. It was clear he was calling multiple numbers and waiting until someone answered

They call me all the time. I've got 5 0r 6 computers more or less on line all the time. nThey just can't seem to tell me which one has the problem, Ignorant fools.

Called at 10:15 pm.  No one answered.  Normally don't answer unknown numbers, but was curious.  Won't answer again.