# WHATPORT(10566)

## NAME

port 10566 — Unassigned — No IANA assignment; nothing well-known listens here by default.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA has no entry for 10566, and Nmap's service database lists it as unknown, open on about 0.04% of scanned hosts. No widely deployed project uses it as a default. Treat an open 10566 as an unidentified application port and fingerprint it directly.

## EXPOSURE

**Expose with care.** An unidentified listener should not be assumed safe. Find the owning process, then decide.

## CHECK

```sh
nmap -sV -p 10566 TARGET
```

## SEE ALSO

- iana — [IANA port registry — 10566 (no assignment)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=10566) (iana.org)
- source — [nmap-services — Nmap's port frequency database](https://github.com/nmap/nmap/blob/master/nmap-services) (github.com)

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HTML: <https://whatport.net/10566/> · JSON: <https://whatport.net/10566.json> · full dataset: <https://whatport.net/ports.json>