2 entries are registered on port 2500. 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
2 of 2 iana-registered
| port | service | proto | category | risk | views |
|---|---|---|---|---|---|
| :2500 | sMessenger Service | TCP | Network Services | caution | 8.9k |
| :2500 | Resource Tracking System server | TCPUDP | System | safe | 0 |
Port 2500 is officially assigned for THE sMessenger service, which facilitates communication between sMessenger clients and its server component. It is primarily a TCP-based port used to support messaging services, maintaining persistent connections for message delivery and management.
port 2500 as sMessenger Service →Resource Tracking System server traffic assigned to TCP and UDP port 2500.
port 2500 as Resource Tracking System server →The registry says what 2500 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 ':2500\b'lsof -nP -iTCP:2500 -sTCP:LISTENnetstat -ano | findstr :2500On 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 2500 — 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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