Unregistered, unnamed, and rarely open — nothing conventional lives here.
44501 has no IANA registration and no service name in Nmap's database, which records it open on roughly 0.02% of scanned hosts. No documented product claims the number, so a listener is whatever the operator configured. It also falls inside the Linux ephemeral range, which accounts for a share of the sightings.
Expose with care
With no known protocol behind the number, the only honest answer is to fingerprint the service and judge that instead.
$ nmap -sV -Pn -p 44501 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.