"Paradym 31 Port" — a name in the registry and nothing else.
IANA assigns 1864 (TCP and UDP) to "paradym-31port", registered by David Wooden with the description "Paradym 31 Port". No specification, vendor documentation, or current implementation is publicly available. Its practical significance is that it sits directly above 1863, so it occasionally gets swept up in scans looking for MSN-era software rather than for anything to do with Paradym.
Expose with care
Nothing widely deployed claims this port, so an open 1864 is an unidentified service and should be traced to its process before it is allowed through anything.
$ nc -vz -w 3 TARGET 1864Seen 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.