Who called from 9179793040

Recently switched from Time Warner to Verizon FiOS.  This number is a sales call from Time Warner... Calls daily to switch back.  Not a chance!

This number called my place of business multiple times a day and when I would answer there was always just silence. Caller ID read "Support INT"

I answer, and nothying but dead air on my business line, Very annoying and disreputive.

I answer, but nothing.  I blocked the number.