keeps calling on a regular basis.  I never answer.  I have an answering machine but they never leave a message.

Abusive caller.  Doesn't want to take NO for an answer.

They have been calling me nearly every day for over a month.   I have them blocked on my cell and hard line but am still able to see the call coming in.   They never leave a message..........

They keep calling - never leave a message - I don't know who they are & so I will never answer. If they really have legitimate business with me, they would leave a message.

It's the NRA