Same problem--they've literally called me 5 times in the past week.  I asked them to call me back when they called while I was at work.  Then they called back 10 minutes later.  Then 4 times the next day, all in a row, like I would see the repeated calls and call back.  

When I spoke with them, I asked them to take me off their list. No luck yet.

They've called twice so far, and have left no message. I don't respond to numbers from strange area codes. I also don't reply to missed calls if there's no message left. Is there a way to get them to stop?

I got five or six calls this week from the number too, and I also don't pick up unknown numbers & I don't call back unless they leave a voicemail. What are they calling about??

It's KAPLAN trying to sell you overpriced test prep materials and courses.

This is really bizarre, but i'm glad i'm not the only one... How did they even get out numbers?