how to see what service is using a port code example

Example 1: find out process using port windows

netstat -ano | findstr 8080

Example 2: check which application is using port

In Windows CMD/Powershell:
netstat -aon | findstr '[port_number]'

Example 3: find which service is using port

netstat -aon | findstr<port_number>  

 tasklist | findstr 9260