Unassigned at IANA — no registered service, no common squatter.
6732 falls inside IANA's Unassigned block 6717-6766, and nmap's table has no name for it. There is no protocol, no default, and no documented malware association to report. That is the entire truth of this port: if it is open, a local application picked it, and only the host can tell you which one.
Expose with care
Unknown listener, unknown surface. Identify the process rather than reasoning from the port number.
$ sudo lsof -nP -iTCP:6732 -sTCP:LISTENSeen 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.