# WHATPORT(54045)

## NAME

port 54045 — Unassigned (dynamic range) — No registration and no documented service — a number Nmap probes and nothing claims.

Protocol: TCP  
IANA registry

## DESCRIPTION

54045 is inside the Dynamic/Private range, so there is no IANA record for it and never will be under RFC 6335. Nmap's nmap-services lists TCP at 0.000228 and UDP at 0.001004, keeping it in the default top-1000 TCP scan. The SANS ISC port page leaves the service field blank; the only attributions there are unsourced visitor comments, which are not evidence. Treat a listener here as an unidentified local application.

## EXPOSURE

**Expose with care.** Nothing is known about what runs here, so nothing about its authentication or encryption can be assumed. Identify first, expose never-by-default.

## CHECK

```sh
sudo lsof -nP -iTCP:54045 -sTCP:LISTEN
```

## SEE ALSO

- spec — [RFC 6335 — Dynamic Ports (49152-65535)](https://www.rfc-editor.org/rfc/rfc6335.html) (rfc-editor.org)
- iana — [IANA port registry — search 54045](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=54045) (iana.org)
- docs — [Nmap Reference Guide — the nmap-services file](https://nmap.org/book/nmap-services.html) (nmap.org)

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HTML: <https://whatport.net/54045/> · JSON: <https://whatport.net/54045.json> · full dataset: <https://whatport.net/ports.json>