2 entries are registered on port 2593. 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 |
|---|---|---|---|---|---|
| :2593 | RunUO Ultima Online | TCPUDP | Gaming | caution | 9.2k |
| :2593 | MNS Mail Notice Service | TCPUDP | safe | 0 |
RunUO is an emulator server software for the popular MMORPG Ultima Online. It allows users to host private shards (servers) emulating the original game's experience, customized worlds, or entirely novel gameplay tailored to communities.
port 2593 as RunUO Ultima Online →TCP/UDP 2593 is assigned to MNS Mail Notice Service, registered to Rumiko Kikuta.
port 2593 as MNS Mail Notice Service →The registry says what 2593 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 ':2593\b'lsof -nP -iTCP:2593 -sTCP:LISTENnetstat -ano | findstr :2593On 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 2593 — 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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