Unregistered dynamic port with no documented service behind it.
50006 has no IANA assignment — the registry does not extend past 49151 — and Nmap's service database has no name for it. It is a plain unassigned high port that shows up when an application, container, or test harness was pointed at a number in the 50000s. Any claim that a specific product owns it would be invention; the correct move is a service-version scan.
Expose with care
Unknown service, so unknown authentication. Do not expose it until you know what answers and whether it authenticates.
$ nmap -Pn -sV -p 50006 TARGETSeen this on your network? Beige Box scans your Wi-Fi and shows every open port on every device — and its Ports tool links straight back here.
Get Beige Box →also available as JSON · Markdown
Corrections or a missing port? Reply @rimrocksystems.