I'm getting phone calls from this number as well. No voice mail, and I don't want to pick it up. I've entered my number in the online do-not-call register yet this number keeps calling.
I get this number on my cell phone several times a day. Sometimes, I let the phone ring, but never get a voicemail. Usually, I hang up, but they still call me.
Based on what I found it's from Heritage University or one of their affiliates. I requested information from them once about 9 months ago and since then they've called me 10+ times a day. I've requested numerous times that they stop calling me, but they keep at it.