Same here. I have had 4 calls in the last 3 days from this number as well. They have never left a message as well. I added them to my reject list on my phone. If it is important, they would have left a message.
I have gotten at least 1 call a day from this number for the past two weeks, I don't know who they are, nor do they leave a message. I keep ignoring the calls. Anyone know who these people are?