Unwanted unsolicited calls

Has called. Rings twice hang up. Calls back won't leave message on machine.

Called today and it rang twice. I tried to return the call and the response was "no routes found". We are on a no call list, so this is not appreciated.

the number rang one and a half times what it called me and hung up it just shows the phone number unknown caller what is this phone number for why are they calling my phone they don't answer back

Received a call from this number but if they needed to get in touch with me, they should have left a message.  The best thing to do is add to rejection calls.