Got a call from this number at 10:45 am, 5/24/16. I only called back thinking this was a call I had been waiting for. Their voicemail does not identify their business, yet says their customer service reps are busy with other calls, lists their business hours, and to call back at another time.
Here's the clincher: if you want to be placed on their "do not call list," they ask for your, complete address, and phone number!
Received 3 calls today, automated voice stating they want to talk to me about my time share. I finally had it, called it back and a person answered "hello". She told me no one was calling from that number, they were an IT firm.