Got a call from this unknown number this evening.

This number called today.  Caller I.D. said Shelton..  I did not pick up the phone, no message was left.

a couple calls in last days, don't answer unknown caller IDs

Just got a phone call from this number and they didn't leave a message. I phoned back and the recorded messages states the call comes from "Victory Processing a political polling firm". There are instructions that if you will leave your information they will stop calling you

I have blocked this number

These idiots are calling me every day and not leaving a message unless their robot caller is not fast enough to escape my messaging machine, in which case I get a blank message.  I have called them repeatedly to be taken off their calling list.  it is obviously not random because they call every day (caller id).  Now I call them back every day and ask to be removed, inserting expletives randomly in my message.  Very annoying.