01Unassigned Portno transport recorded · unofficial · risk 1/10
Port 20202 has no registered IANA service assignment.
port 20202 as Unassigned Port →Port 202022 services
2 entries are registered on port 20202. 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.
- entries
- 2
- transport
- tcp · udp
- in transit
- 0/2
- worst risk
- 1/10
services registered on this number
2 transports in use
entries encrypted on the wire
1 of 2 iana-registered
Services on this port
| port | service | risk | |||
|---|---|---|---|---|---|
| :20202 | Unassigned Port | — | safe | 0 | |
| :20202 | IPD Tunneling | TCPUDP | Network Services | safe | 0 |
02IPD Tunnelingtcp · udp · iana-registered · risk 1/10
IPD Tunneling is the assigned purpose of TCP/UDP port 20202, but it has no established public deployment.
port 20202 as IPD Tunneling →filed underNetwork Services
Which one is on your host
The registry says what 20202 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.
- linux
ss -ltnp | grep ':20202\b'- macos
lsof -nP -iTCP:20202 -sTCP:LISTEN- windows
netstat -ano | findstr :20202
On 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 20202 — 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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