Port forwarding

so i have a question i am still so confused and i need help form some one who is not a bot or some one who knows nothing about port forwarding. So my question is what ports are blocked on cox. A port that has UDP and TCP port. do any of you guys know. Here's the link i keep getting sent https://www.cox.com/residential/support/internet-ports-blocked-or-restricted-by-cox.html. Thank you