Who called from 2126019579

They called and left no message. I called back and kept getting a busy signal.u

Same here no message and when u call back BUSY signal

Received call, no message! ID showed New York, NY

Calls come from 212-601-9579 @ 8 in the AM and @ 9:30 @ night.  No message is ever left.
A  P.I.T.A. (Pain in....)   They also learn how many rings your answering machine takes to answer and they hang up just prior to the machine picking up their call.

they also hang up when you answer, they've been calling for over a week.