How do I block unknown and private numbers?
Some options:
Subscribe to Verizon's Usage Controls ($4.99 per month).
Use an e-mail service like YouMail.
Don't answer the phone and hope they eventually stop calling.
Review other threads such as those to the right under More Like This for additional suggestions.
https://play.google.com/store/apps/details?id=com.flexaspect.android.everycallcontrol&hl=en
this dont show nothing
http://www.everycall.us/call-control/