Local Area Caller my backside. Didn't answer it, know it wasn't invited or welcome

Caller leaves a message asking for you by your first name and ask if you are there.  Every call I have received like this is from a police union asking for donations.  My union just raises my dues, they never look for donations.  They claim to be exempt from the do not call list because they are a charity.  Come on man.

From my research this is NOT an non-profit (501c) organization.

Always calls around 7:30pm and never leaves message. answered once and hung up. will block if he calls one more time.

This number called my DNC landline and I let the answering machine pick it up. A male voice asked "Is Sam there" and after a few seconds finally hung up. I will add this number to my blocked list.