In the same boat with most people here, I continuously get phone calls from this number. At least once a day for the past few months (though, took a break at the end of the year), I'll see this caller number on my phone. I've answered and got no response and never leaves a voicemail.
Yeah I'm getting the same types of calls from this number as well. No vmail, and the number does not accept incoming calls. Very weird and annoying. I get 2 calls each day.