This afternoon, at 3:15, I got a call from 310-734-5673 on June 5, 2014. I did not answer the phone and the caller did not leave a message. It's annoying because I have to stop what I'm doing, get up and walk to the phone to look at the caller ID and then decide if I want to answer the call. My caller ID said, "Out of area," which tells me nothing.
If you call the number back, you can press option 2 to have yourself removed from their call list. They called me every 3 hours today beginning at 9 am, and just got my 4th call at 6pm when I decided to answer. It was Enhanced Education. I am quite old and finished college years ago, never inquired about this information.