01Unassigned Portno transport recorded · unofficial · risk 0/10
Port 5090 has no IANA service assignment or widely established standard use.
port 5090 as Unassigned Port →Port 50902 services
2 entries are registered on port 5090. 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
- sctp
- in transit
- 0/2
- worst risk
- 1/10
services registered on this number
1 transport in use
entries encrypted on the wire
1 of 2 iana-registered
Services on this port
| port | service | risk | |||
|---|---|---|---|---|---|
| :5090 | Unassigned Port | — | safe | 0 | |
| :5090 | Candidate Access Router (CAR) | SCTP | Network Services | safe | 0 |
02Candidate Access Router (CAR)sctp · iana-registered · risk 1/10
SCTP port associated with Candidate Access Router discovery for mobility and handoff; not a commonly encountered public service.
port 5090 as Candidate Access Router (CAR) →Which one is on your host
The registry says what 5090 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 ':5090\b'- macos
lsof -nP -iTCP:5090 -sTCP:LISTEN- windows
netstat -ano | findstr :5090
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 5090 — 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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