Who called from 3213251334

Constant calling him and doesn't say anything. When I  all back they pick up the phone and doesn't say anything

Calls and sits in silence for a few then says he's the IRS, the IRS would neve call you, they don't have time for that. These people have been trying to scam me for over a year, looks like I'm changing my number nothing will make them stop, I've tried everything!!!!

Keeps calling, no message

Called again, I answered, they hung up, they are blocked

called and hung up when i answered the phone. i called back and they said they were some sort of financial agency but would tell me what is had to deal with.