To find all listening ports and their programs

netstat --tcp --udp --listening --program

The output is something like the below:

# netstat --tcp --udp --listening --program
Active Internet connections (only servers)

Proto	Recv-Q	Send-Q	Local Address	Foreign Address	State	PID/Program name
tcp	0	0	*:exec	*:*	LISTEN	4284/xinetd
tcp	0	0	*:nfs	*:*	LISTEN	-
tcp	0	0	*:login	*:*	LISTEN	4284/xinetd
tcp	0	0	*:53730	*:*	LISTEN	15445/oidldapd
tcp	0	0	*:shell	*:*	LISTEN	4284/xinetd
tcp	0	0	*:1830	*:*	LISTEN	10930/emagent
tcp	0	0	*:33033	*:*	LISTEN	23649/java