Called my cell phone on 10/19/2016 at 6:50 PM and as usual, no VM was left. Since no VM was left, the call wasn't important to begin with.  After looking this number up, it shows that its coming from Aspen Hill, Bethesda, Frederick area of MD. Since I don't know anybody who resides in that area of MD, the number has been blocked permanently.
Caller: 240-404-3515
Call type: Annoying call