Dead air when I picked up.

Just got a call from this number with "unknown name" on caller ID. I answered, and no one spoke, then they hung up a few seconds later.

I get this "dead air" call all the time. I just mute the ringer.

they asked for me by name and then hung up??

Got another call from this number today. I have noticed a weird pattern... not sure if there is anything to it, but I have a car for sale on Craigslist, and I got this call when I first listed the ad and again today when I refreshed the ad. I did see on another site like this one for unknown numbers calling people where someone mentioned that they had been replying to Craigslist ads with their phone number the same day that they received a call from this number as well.... weird. :o/