No. That would be illegal without a judicial warrant, which would have to be applied for, with evidence that you were doing something illegal And, warrants are only good for a set time.
I know this because I actually did Signals Intelligence for 25 years. I know the rules, and restrictions. So, I actually know what I am talking about. Most people just think they know, but, they don't. So, unless you are a criminal, and they can show that, no-one is listening inn to you - except perhaps foreign agents, but, that is exceedingly unlikely.