Video answer: Netstat - displays ports opened
Top best answers to the question «Netstat not showing what is listening on specified port»
If netstat does not show your port it is because the application which should listen to this port is not working properly. You can check whether the port is open using TCP listen or similar utility - just configure it to listen 13724 port and see netstat.
Video answer: How to use netstat & fport command to detect spyware, malware & trojans by britec