Who called from 2155256560

We keep getting calls from this number.  When we answer there is no one on the other end.

Called me on May 14 and May 15. Left another number to call back that I didn't write down at the time. I have no idea why they called.

I should also mention, I called the number back and they claim to be customer service.

I also been getting calls from this phone number.  Anybody know what/why they do this?

Apparently their automated system sucks. I actually got another call from them and talked to a live person. They are a company representing local newspapers. I recently canceled San Jose Mercury Newspaper and they wanted to find out why and if I would be interested in a new offer. I asked about their [***] up phone system...they said we've been having problems with our automated system. Another website claims the company is verafast.

http://whocalled.us/lookup/2155256560