Who called from 3479608340

Very annoying.  Received two calls from this number today.

I also recieved several call from this number with no one on the line. Did the caller identify themselves?

get a call from this number at least once a day, and no one is on the line!!!

3 rings then it disconnected when my ans. machine picked up

This number calls at all times w/ no answer. More annoying than actual telemarketers that you can actually tell off or ignore.  What is their point of not answering?  At least other annoying call are trying to sell, scam, etc.