2 entries are registered on port 9600. It is a registered port (1024–49151) — IANA records an assignee, but nothing stops other software from listening here, which is why the number carries more than one entry.
services registered on this number
2 transports in use
entries encrypted on the wire
2 of 2 iana-registered
| port | service | proto | category | risk | views |
|---|---|---|---|---|---|
| :9600 | Omron FINS Communication | UDP | Network Services | caution | 33.2k |
| :9600 | Micromuse NCPW | TCPUDP | — | safe | 0 |
Port 9600 is primarily used for Omron FINS (Factory Interface Network Service) communication to interface with Omron Programmable Logic Controllers (PLCs). It allows various industrial devices and software components to communicate seamlessly on a factory floor, facilitating data acquisition, device control, and automation processes using the FINS protocol over UDP.
port 9600 as Omron FINS Communication →Port 9600 is assigned to the Micromuse NCPW service over TCP and UDP.
port 9600 as Micromuse NCPW →The registry says what 9600 is registered to. What is listening on it right now is decided by the host, and only the host can be asked. Each of these prints the process behind the socket.
ss -ltnp | grep ':9600\b'lsof -nP -iTCP:9600 -sTCP:LISTENnetstat -ano | findstr :9600On Linux and Windows the process name comes back with the socket; on macOS lsof needs sudo to name a process that isn't yours. Match what it prints against the 2 entries above.
A port number is not a service. Anything may listen on 9600 — what you actually met is decided by the host, not the registry. If a service is missing here, it belongs in the registry.
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