2 entries are registered on port 1627. 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 |
|---|---|---|---|---|---|
| :1627 | iSketch | Gaming | caution | 4.5k | |
| :1627 | T.128 Gateway | TCPUDP | — | safe | 0 |
iSketch is an online multiplayer drawing game server that historically operated over this port for game communication. It facilitated user interactions in real-time, enabling players to participate in a Pictionary-style game where users guess drawings created by others.
port 1627 as iSketch →Port assigned for T.128 Gateway traffic over TCP or UDP.
port 1627 as T.128 Gateway →The registry says what 1627 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 ':1627\b'lsof -nP -iTCP:1627 -sTCP:LISTENnetstat -ano | findstr :1627On 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 1627 — 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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