2 entries are registered on port 1029. 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.
Port 1029 is frequently associated with Microsoft Distributed Component Object Model (DCOM) communications. DCOM enables software components to communicate directly across networked environments, predominantly within Windows operating systems. While this port is unofficial and dynamic, it's commonly observed during remote procedure calls and system management activities.
The registry says what 1029 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 ':1029\b'
macos
lsof -nP -iTCP:1029 -sTCP:LISTEN
windows
netstat -ano | findstr :1029
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 1029 — what you actually met is decided by the host, not the registry. If a service is missing here, it belongs in the registry.