Hi@akhtar,
In Linux system netstat-tnlp command comes from net-tools software. By default it should be pre installed in Linux system. Otherwise you can download it from your own.
$ yum install net-tools
$ netstat-tnlp
There are one another way to check running port no using nmap.
$ yum install nmap
$ nmap -sT -O <ip>
Hope this will help you.