2 entries are registered on port 5050. 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
1 of 2 iana-registered
| port | service | proto | category | risk | views |
|---|---|---|---|---|---|
| :5050 | Yahoo Messenger | TCP | Voice and Chat | caution | 8.9k |
| :5050 | Multimedia Conference Control Tool | TCPUDP | Media | safe | 0 |
Yahoo Messenger is an instant messaging service developed by Yahoo, allowing users to send text messages, exchange files, and engage in voice and video communication. It operated primarily over TCP port 5050, enabling millions worldwide to connect in real-time online chats and group conversations. Despite its eventual discontinuation, Yahoo Messenger was vital in shaping early online communication platforms.
port 5050 as Yahoo Messenger →Port 5050 carries multimedia conference control traffic over TCP or UDP.
port 5050 as Multimedia Conference Control Tool →The registry says what 5050 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 ':5050\b'lsof -nP -iTCP:5050 -sTCP:LISTENnetstat -ano | findstr :5050On 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 5050 — 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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