Quickly Find Local Open Ports

Usually, if you want to see all the used and listening ports on your computer, you’d use the NETSTAT command.

Note: The NETSTAT command will show you whatever ports are open or in use, but it is NOT a port scanning tool! If you want to have your computer scanned for open ports see this page instead (link will follow shortly).

Open Command Prompt and type:

C:'WINDOWS>netstat -an |find /i "listening"
TCP   0.0.0.0:135   0.0.0.0:0   LISTENING
TCP   0.0.0.0:445   0.0.0.0:0   LISTENING
TCP   0.0.0.0:1025   0.0.0.0:0   LISTENING
TCP   0.0.0.0:1084   0.0.0.0:0   LISTENING
TCP   0.0.0.0:2094   0.0.0.0:0   LISTENING
TCP   0.0.0.0:3389   0.0.0.0:0   LISTENING
TCP   0.0.0.0:5000   0.0.0.0:0   LISTENING

netstat -an |find /i "listening" > c:/openports.txt

You can also change "listening" to  "established" to see what ports your computer actually communicates with:
C:'WINDOWS>netstat -an |find /i "established"

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