-b Displays the executable involved in creating each connection or
listening port. In some cases well-known executables host
multiple independent components, and in these cases the
sequence of components involved in creating the connection
or listening port is displayed. In this case the executable
name is in  at the bottom, on top is the component it called,
and so forth until TCP/IP was reached. Note that this option
can be time-consuming and will fail unless you have sufficient
netstat -b command will fail unless run from an elevated command prompt.
Filter the process list and find the PID you're interested in:
tasklist | findstr /c:"PID"
You can use
Tcpvcon.exe instead. No admin rights required.
Tcpvcon usage is similar to that of the built-in Windows
Usage: tcpvcon [-a] [-c] [-n] [process name or PID]
-a Show all endpoints (default is to show established TCP connections).
-c Print output as CSV.
-n Don't resolve addresses.