HOW TO FIND PORT NUMBER

That port is in the ephemeral range, so it’s not an assigned port. It’s whatever needs a port.

Here are a couple of Terminal commands that will report TCP and UDP activity on the specified port.

sudo lsof -i TCP:55056
sudo lsof -i UDP:55056

Try the following in Terminal:

lsof -i -P -n 

That should provide a list of all processes that have open ports. Look at the last column for the address and port number.

Hope this helps,

Reid

Bookmark the Apple support site TCP and UDP ports used by Apple software products - Apple Support!