Who called from 2817420540

My message?
Go [***] yourself.
Quack quack.

CID read "unavailable". I never answer those. No message left. Number now blocked.

Sep. 2, 2016 - hang up call to my cell number that is on the national DNC list. I answered and said "Hello" but there was nobody there.

Another robocaller - now blocked.

Thanks for heads up.