Unassigned, but Nmap aims its plain-text line probe here — whatever answers tends to be line-oriented.
IANA lists 26214 in the unassigned range 26209-26256, so there is no registered service. It is more interesting than most unnamed ports for one reason: Nmap's service-probe file includes 26214 in the port list for the GenericLines probe, the one that sends bare CRLFs to elicit a banner from text protocols. That means Nmap's authors saw enough line-based services on this port to target it, without ever pinning down a name. Expect a text-speaking daemon of some kind, not a specific product.
Expose with care
A line-oriented service that answers a bare CRLF is usually cleartext. Confirm what it is before letting anything but the LAN reach it.
$ nmap -Pn -sV -p 26214 --reason 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.