Who called from 2124613713

This number has called me repeatedly for about a month, often 5 times in a row but canceling the call before I can answer. The one time I did pick up it was silent then ended. What gives?

Calls several times today Sunday last call 8:36PM. WAITS FOR VOICEMAIL & doesn't leave a message. [***], a scam of some time I imagine. Thanks caller Id.

This number called 11 times. Today,yesterday and day before. I answered last call. and no response on other end of line. I finally hung up.

I called back this number after getting non stop calls and they never leave message. When I got through I got recording saying "you have been contacted to do a survey, we will call you back". Who knows what kind of survey or scam.

We are being harassed by this number.  I think I'm going to call & have a trace put on it & call the fcc