Who called from 7816845500

I believe it is:

NRT Insurance Agency
Suite 24
1601 Prapelo Road
Waltham, MA  02451

Apparently, if you make an offer on a house through a Coldwell Banker Real Estate office, you start getting daily robocalls from this company consisting of five seconds of silence and then a hang-up.  My solution: I will avoid making any more offers through a Coldwell Banker real estate rep.

This number keeps calling me and hanging up.

call from 781-684-5500 not requested.  I don't know anyone in Mass, so I didn't pick up.  Left no message, so it must not have been very important.

I just got a call from 781-684-5500.  Answered and the call immediately hung up.

... and yes, I recently made an offer through a Coldwell Banker real estate rep.