Unassigned by IANA; Nmap sees marginally more UDP than TCP activity here, and neither maps to a known service.
IANA has no registration for 10628 on any transport. Nmap's service frequencies list it as unknown for both TCP and UDP, with the UDP figure slightly the higher of the two — a hint that some of what touches this number is scan or backscatter traffic rather than a TCP service anyone runs. No public product documentation defaults to it. A TCP listener here is a deliberate local choice.
Expose with care
Identify the process first. An unregistered port is often where someone parked an admin or debug endpoint precisely because it looked anonymous.
$ nmap -Pn -sV -p 10628 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.
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Corrections or a missing port? Reply @rimrocksystems.