Who called from 2142956850

called my number and hung up twice today

I show this call coming into my residence twice today on caller id.  I returned the call and got a tone, as if it were a fax machine.

Multiple calls from this number last 2-3 days--enough to be quite annoying.
They never leave a message which would be so much easier than calling and calling and calling.....

I received a call from it.   It was the service workers union for Obama.

this number called me twice today and hung up also!