Block Whatsapp Firewall

Hello Lovely People!

I have been Googling for last couple of days before to find an answer to my question but no avail:

How to block Whatsapp using a firewall?

There should a way to find out what active connection Whatsapp is keeping open to talk to their servers. How do I track this address down?

Please share your thoughts and I deal. I am glad to explore.

Thank you in advance! 🙂