3 entries are registered on port 5450. 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 3 iana-registered
| port | service | proto | category | risk | views |
|---|---|---|---|---|---|
| :5450 | OSIsoft PI System Client | TCP | Databases | caution | 14.3k |
| :5450 | TiePie Data Acquisition Discovery | UDP | Network Services | safe | 0 |
| :5450 | TiePie Engineering Data Acquisition | TCP | — | safe | 0 |
Port 5450 is utilized by the OSIsoft PI System to facilitate secure and efficient communication between PI Server and client applications. It enables data access, collection, and management functionalities key for real-time industrial data analytics and storage, widely used in sectors like manufacturing, utilities, and energy for process data monitoring.
port 5450 as OSIsoft PI System Client →UDP port assigned for discovery of TiePie engineering data-acquisition equipment.
port 5450 as TiePie Data Acquisition Discovery →TCP port assigned to TiePie Engineering for data acquisition with its measurement instruments.
port 5450 as TiePie Engineering Data Acquisition →The registry says what 5450 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 ':5450\b'lsof -nP -iTCP:5450 -sTCP:LISTENnetstat -ano | findstr :5450On 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 3 entries above.
A port number is not a service. Anything may listen on 5450 — 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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