How to get TCP port number of currrently connected Db2 connection?

On Db2 v11.5 on Linux I can get Db2 instance TCP port number by:

db2 get dbm cfg | grep SVCENAME
cat /etc/services | grep db2c_

But I would like to get above info with SELECT statement. I would like to connect to remote database and execute some SELECT statement. How to write SELECT statement to get current Db2 instance TCP port number for currently connected database?