Answered this call as we have neighbor with a 415 area code #.  Turned out it's a good ol' telemarketer touting that venerable combination of Police and Children (keep kids off drugs etc.) these guys usually get up to 80% of the take, the non Profit gets what's left just for lending their name. The ones getting screwed are us, thinking we're giving maybe $100 while the charity gets maybe $20.

Me too-  Same thing happened to me.

I received a call this afternoon @ 2:43 pm,  my caller ID showed "Incoming Call" with the following # (415) 363-9645
I knew the Area Code call was from San Francisco and hesitated to answer since I know nobody from there. However after answering the call, there was total silence, I repeated my hello's a few times, then whoever was on the line just hung up.
I am on the "Do Not Call" list.
I checked the # on the web and found out that I was not the only person who has received calls from this # in San Francisco.
Please see if there is something you can do to stop this person or persons from calling without identifying themselves.
Not knowing the reason for the call in itself is suspicious.

Thank you for your time

I answered the call but didn't say hello. A male voice said hello then I hung up. I figured it was a sales call or donation call. Found it funny that Caller ID stated Incoming Call

Many Class From this number. No Message left.

Received this call and did not leave a message.  Caller ID indicated the provider as "Incoming Call" which my phone was already indicating.