2 entries are registered on port 4433. 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
1 transport in use
entries encrypted on the wire
1 of 2 iana-registered
| port | service | proto | category | risk | views |
|---|---|---|---|---|---|
| :4433 | Axence nVision | TCP | Security | caution | 8.9k |
| :4433 | Versile Object Protocol | TCPtls | Network Services | safe | 0 |
Axence nVision is a comprehensive network management and monitoring tool that allows IT professionals to oversee their infrastructure effectively. It provides real-time visibility into network assets, user activity, and security events, enabling efficient troubleshooting and performance optimization.
port 4433 as Axence nVision →TCP port 4433 is assigned to Versile Object Protocol, a protocol developed by Versile AS.
port 4433 as Versile Object Protocol →The registry says what 4433 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 ':4433\b'lsof -nP -iTCP:4433 -sTCP:LISTENnetstat -ano | findstr :4433On 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 4433 — 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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