Registered with IANA as iPulse-ICS on TCP and UDP; almost nothing public documents it beyond the registration.
IANA assigns 20222 the service name 'ipulse-ics' on both TCP and UDP, registered to an individual assignee rather than a named standard or open project. Nmap inherits that name in its service table with a low open-frequency. Beyond the registry entry there is no published protocol description, no reference implementation, and no widely deployed product that documents using it, so a hit here is far more likely to be an unrelated in-house service than iPulse-ICS itself.
Expose with care
With no public protocol to reason about, the safe reading is 'unknown listener'. Identify what actually answers before leaving it reachable.
$ nmap -Pn -sV -p 20222 --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.
Get Beige Box →also available as JSON · Markdown
Corrections or a missing port? Reply @rimrocksystems.